Which is true of transition metals when moving from left to right on the periodic table

Answers

Answer 1

Answer:

D

Explanation:

Atomic radii decrease slightly and then start to increase.

Answer 2

Atomic radius of transition metals from left to right increases slightly then decreases. Thus it is not following the trend as for other periods. Hence, option c is correct.

What are transition metals?

Transition metals are d-block elements in periodic table. starting from group 3 to group 12. Transition metals are called so because they are in between gases and metals in periodic table.

All transition metals shows varying oxidation states.  For example, iron Fe shows +2 and +3 and copper shows +1, +2 and +3.  Transition metals are malleable, ductile and are good conductors of heat and electricity.

From left to right in a row in periodic table, the atomic radius decreases and electronegativity increases. However, this trend is not systematic in the case of transition metals where, the atomic radii increases first and then decreases.

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Your question is incomplete, but your complete question probably was:

Which is true of transition metals when moving from left to right on the periodic table

The d sublevels are not filled across the period.

The cation radii become larger across the period.

Atomic radii increase slightly and then start to decrease.

Atomic radii decrease slightly and then start to increase.


Related Questions

Which compound contains both sigma and pi bonds

Answers

Any compound with multiple covalent bonds
The difference starts with sigma bonds. Electrons are disabled by nuclear attraction from both bonding nuclei, while within pi bonds, electrons are loosely held in the general proximity of either bonding nucleus. All pi bonds are naturally delocalisable. People are most commonly used to call it “double bond character,” but since it can occur for triple bonds as well as bonding that never even fully constitutes a double bond, stigma character and pi character are more appropriate, in my opinion.

What is a criterion for all products made using the process of technological design? The product must be cheaper than similar products.

The product must be available to any user who wants it.

The product must solve the problem for which it was designed.

The product must be capable of solving a variety of problems.

Answers

Answer:

C. The product must solve the problem for which it was designed.

Explanation:

Technological design is the study, development and application of technological process with the intent of designing a product to solve required problem.The process could be based on the use of a computer.

Generally, technological process and development always tend to design a problem solver product. Through this process, more new technologies are produced.

Therefore in technological process, the product must solve the problem for which it was designed.

Answer:

C) The product must solve the problem for which it was designed.

If two identical atoms are bonded together, what kind of molecule is formed?
A. A bent, nonpolar molecule
B. A linear, polar molecule
C. A linear, nonpolar molecule
D. A linear, ionic molecule

Answers

Answer:

C. A linear, nonpolar molecule

Explanation:

Molecules which are alike usually have the same degree of pull which results in them sharing electrons. This sharing of electrons is known as the molecules exhibiting Covalent bonding between them.

The equal pull also results in the cancelling out of electrons and favoring non polar bonds due to the absence of free electrons which would have been able to interact with H2O in a polar binding system.

Answer:

C

Explanation:

APEX

Which organic compound is saturated?

1.ethene
2.propene
3.ethyne
4.propane

Answers

Answer:

3. ethyne

Explanation:

Highest ratio of hydrogen to carbon? I'm not sure I found it on the internet but the answer is right

What is the mass number of an atom that contains 19 protons, 19 electrons, and 20 neutrons?

Answers

Answer:

39

Explanation:

Total protons + total neutrons = mass number

name two bases which react with dillute sulfuric acid to give zinc sulfate

Answers

Answer:

Zinc Carbonate

Zinc Nitrate

Explanation:

Why does the weight of the dry ice go down while it’s sitting on the scale

Answers

Dry ice is colder, heavier, less messy than regular ice. If I understood your question correctly, the mass of it would decrease bc it is being dispersed into the air as carbon dioxide.

Explanation:

As a result of the transformation of solid carbon dioxide into carbon dioxide gas, which enters the atmosphere, the weight of the ice decreases and falls.

What is Melting?Melting, also known as fusion, is a physical process that causes a substance's phase transition from solid to liquid. This happens when the internal energy of a solid increases, typically through the application of heat or pressure, which raises the temperature of the substance to the melting point. Melting is the transformation of a solid into a liquid caused by the application of heat. In a pure crystalline solid, this process occurs at a fixed temperature known as the melting point; an impure solid usually melts over a range of temperatures below the melting point of the principal component.The melting point of a solid is the temperature at which melting occurs. In this process, heat is released from the solid.

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If the pH of a solution is 6.2, what would the pOH be?
O A. 7.8
B. 8.9
C. 12.4
D. 5.8
SUBMIT

Answers

Answer:

7.8

Explanation:

pH + pOH = 14

pOH = 14 - 6.2

= 7.8

1. Calculate the pH of a 0.35 mol/L solution of ammonia.

Answers

Answer:

Explanation:

NH3 + H2O ⇌ NH4  + OH-

0.35                              0.35

-log[OH-] = -log0.35 = 0.46 = pOH

14 - 0.46 = 13.54 = pH

Use the drop-down menus to complete the statements

Answers

Answer:

First one: group

Second one: period

Third one: number of valence electrons

Last one: increases

The disinfectant hydrogen peroxide (H2O2)
decomposes to form water and oxygen gas.
How much O2 will result from the decomposition of 2.22 mol of hydrogen peroxide?

Answers

Answer:

1.1 mol of O2

Explanation:

First we need the balance chemical equation which is

2 H2O2 -------> 2 H2O + O2

This is important because in stoichiometry you can go from units of one thing to other by using mole ratios, here the mole ratio is 2 mol of H2O2  for one mole of O2.

[tex]2.2 mol H2O2 \frac{1mol O2}{2 mol H2O2}[/tex] = 1.1 mol of O2

How do forces between particles in solids compare to forces in the other
states of matter?
O A. The forces in solids are stronger than forces in liquids and gases.
O B. The forces in solids are weaker than forces in liquids and gases.
O C. The forces in solids are stronger than forces in liquids but weaker
than forces in gases.
D. The forces in solids are weaker than forces in liquids but stronger
than forces in gases.

Answers

Answer:

the answer is A

Explanation:

Forces are the intermolecular interaction between the matter. Forces present in a solid are strongest. Thus, option A is correct.

What are the phases of matter?

The matter is any substance that occupies a volume. Matter can be a solid, gas, or liquid. The solid phase particles are tightly closed to each other making the force strong.

The particles of liquids that are not too compact are a little free and in gases, the particles are very free, which makes the bonding and the force the weakest.

Therefore, option A. the solids have the strongest intermolecular bonding.

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H2(g) + I2(g) ↔2HI(g) + heat. If more I2 is added, in what direction will the equilibrium shift? Group of answer choices

Answers

Answer:

Towards the products, or to the right

Explanation:

There are no provided answer choices, but the answer should be to the right.

By Le Chatelier's principle, which basically can be summarized as "if you mess with chemistry, chemistry messes back", if more reactants are added, the equilibrium will shift to the right towards the products in order to make more products and counteract the increase in I₂.

How are ironic bonds and covalent bonds different and how are they different?

Answers

Ionic bonds are forces that hold together electrostatic forces of attractions between oppositely charged ions. Ionic bonds have an electronegativity difference greater than or equal to 2. Covalent bonds have an electronegativity difference that is less than 2.

Which phrase best describes the path of a light wave ?

A. Straight away from the source
B. Spiraling around the source
C. Perpendicular to the source
D. Parallel to the source

Answers

Answer:

La B

Explanation:

It's B on Ap3x

Straight away from the source

Why does diamond not conduct electricity

Answers

Answer: no free electrons

Explanation: Diamond is very hard due to the strong covalent bonds and rigid tetrahedral 3d arrangement. It does not conduct electricity, as there are no electrons free to move and carry charge through the structure.

It does not conduct electricity, as there are no electrons free to move and carry charge

PLEASE HELP!!!

Design criteria are the desired features of a design. Identify at least two criteria for the design of the ammonia-making process. Explain why these criteria are important.

Answers

Answer:

Two design criteria for the design of the ammonia making process are;

1) Sustainable hydrogen production by renewable energy

2)  Sustainable use of the ammonia-water thermal absorption cycle to retrieve the ammonia present in the waster water

Explanation:

Ammonia is produced from natural gas in the following process;

H₂ + RSH → RH + H₂S

H₂S + ZnO → ZnS + H₂O (Waste water)

CH₄ + H₂O → CO + 3H₂

CO + H₂O → CO₂ + H₂

Ammonia is then produced by reacting the produced hydrogen with nitrogen in the presence of a catalyst in a process known as the Haber-Bosch process as follows;

3H₂ + N₂ → 2NH₃

The

The design criteria for the design of the ammonia making process therefore as follows;

1) Sustainable use of renewable energy to produce hydrogen gas from the electrolysis of water

2)  Use of the ammonia-water thermal absorption cycle to retrieve the ammonia present in the waster water.

The branch of science which deals with chemicals and their bond is called chemistry.

The two ways by which we can design ammonia making process is as follows:-

Two design criteria for the design of the ammonia making process are:-

Sustainable hydrogen production by renewable energy .The conversion of urea for the production of ammonia.

The usage of ammonia is important in these ways:-

They act as a fertilizer which helps to boost the growth of plants.They act as a poison to humans and many animals, so we have to extract it and handle it with care.Ammonia is also used as an inflammable gas.

Hence, these are the design for the ammonia-making process.

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Both E. coli and Salmonella are single-celled organisms. They do not have a nucleus or other membrane-bound organelles. Based on the concept of domains, what do they have in common? They both belong to kingdom Fungi. They both belong to domain Eukarya. They both belong to domain Bacteria. They both belong to kingdom Animalia.

Answers

Answer:

domain bacteria

Explanation:

Salmonella and E. coli are same in the sense that they are both bacteria,

Answer:

B

Explanation:

When an F atom becomes an F-ion, the Fatom
gains a proton
gains an electron
loses an electron
loses a proton

Answers

When an F atom becomes an F-ion, the F atom gains an electron.

An atom is the smallest indivisible particle of an element. An atom consists of proton, electron and neutron, which are called subatomic particles.

An atom becomes charged when it loses or gains an electron. The charged atom is called an ion.

An atom loses electrons to become positively charged i.e. a cation while it gains electrons to become negatively charged i.e. an anion.

Therefore, when an F atom becomes an F-ion, this means that the F atom gains an electron.

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The Fluoride ion given has a -ve charge onto it. Thus in order to become stable Fluorine gains an electron. Thus option b is correct.

The elements in the periodic table try to attain the stable noble gas configuration in the order to become stable. The noble gas configuration has the elements to be less reactive.

When the atom loses an electron in order to become more stable,  a +ve charge has been implemented onto the ion.

When the atom gains an electron to become stable, a -ve charge has been added to the ion.

The Fluoride ion given has a -ve charge onto it. Thus in order to become stable Fluorine gains an electron. Thus option b is correct.

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Which of the following statements describes electromagnetism?

Answers

Answer:

c)Magnetism can cause electrons to flow, and electricity can make a wire magnetic.

Explanation:

If this is your question:

Which of the following statements describes electromagnetism?

a)Magnetism and electricity are both used by society to do work.

b)Magnetism and electricity both include protons and electrons.

c)Magnetism can cause electrons to flow, and electricity can make a wire magnetic.

d)Electrons are attracted to the protons in magnets.

Answer:

magnetism can cause electrons to flow, and electricity can make a wire magnetic

Explanation:

a p e x :)

H3PO4 + Ca(OH)2 → Ca(H2PO4)2 + H2O

Answers

Given question is incomplete. The complete question is as follows.

Balance the following equation:

[tex]H_3PO_4 + Ca(OH)_2 \rightarrow Ca(H_2PO_4)_2 + H_2O[/tex]

Answer: The balanced chemical equation is as follows.

[tex]2H_3PO_4 + Ca(OH)_2 \rightarrow Ca(H_2PO_4)_2 + 2H_2O[/tex]

Explanation:

When a chemical equation contains same number of atoms on both reactant and product side then this equation is known as balanced equation.

For example, [tex]H_3PO_4 + Ca(OH)_2 \rightarrow Ca(H_2PO_4)_2 + H_2O[/tex]

Number of atoms on reactant side:

H = 5

P = 1

O = 6

Ca = 1

Number of atoms on product side:

H = 6

P = 2

O = 9

Ca = 1

In order to balance this equation, we will multiply [tex]H_3PO_4[/tex] by 2 on reactant side and we will multiply [tex]H_2O[/tex] by 2 on product side. Hence, the balanced chemical equation is as follows.

[tex]2H_3PO_4 + Ca(OH)_2 \rightarrow Ca(H_2PO_4)_2 + 2H_2O[/tex]

How are the particles in solid ice similar to the particles in liquid water, and water vapor? How are they different?

Answers

Matter are anything that is made up of atoms. The similarity among  solid ice, liquid water and water vapor is the water molecule and dissimilarities  is the difference in kinetic energy.

What is matter?

Matter is a substance that has some mass and can occupy some volume. The matter is mainly used in science. Matter can be solid, liquid or gas.

The similarity in the in the particles of  solid ice, liquid water and water vapor is that each of these have same type of molecules that is water molecules. The dissimilarities in  the in the particles of  solid ice, liquid water and water vapor is that particles of of each of these have different kinetic energy.

Therefore, similarity among  solid ice, liquid water and water vapor is the water molecule and disimilarity is the difference in kinetic eneergy.

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What does the period number tell about the energy levels occupied by electrons in an atom?

Answers

The period number tells which is the highest energy level occupied by the electrons

Answer:

Number of energy levels that the element has.

Explanation:

The period number (n) is the outer energy level that is occupied by electrons. The period number that an element is in, is the number of energy levels that the element has.


What is the function of these organelles?

endoplasmic reticulum:

Golgi body:

mitochondrion:

ribosome

Answers

Answer:

endoplasmic reticulum:

✔ helps in the production and movement of materials

Golgi body:

✔ packages and distributes materials in and out of cell

mitochondrion:

✔ supplies energy that the cell uses

ribosome:

✔ produces proteins for the cell

Explanation:

I did it on Edge

The function of endoplasmic reticulum is it helps in production and movement of a material.

What is endoplasmic reticulum?

Endoplasmic reticulum is defined as a network of membranous tubules present within the cytoplasm of a eukaryotic cell.

It is one of the important organ of human body system which helps us in production and movement of material from one body part to another.  

Golgi body helps in packaging and distribution of material in and out of cells.

Mitochondrion supply the energy to the cell. It is called as a power house of cell.

Ribosome helps to produce protein for the cell. It is called as protein factory.

Thus, the function of endoplasmic reticulum is it helps in production and movement of a material.

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how much volume do the gas molecules take up in an inflated balloon

Answers

Answer:

The volume of a gas is determined by the volume of the container it is in. Gases take the shape of their container and the volume of the container....

Explanation:

What happens to the volume or size of a balloon as it rises in the air?

When a balloon goes up higher in the air, its size will increase. Since there's less air in the upper atmosphere, there's less stuff pushing back on the balloon, and hence the pressure is lower, which allows the balloon to expand.

Is pressure inside a balloon greater?

The pressure inside the balloon is higher than the pressure on the outside. ... And the direction of airflow is always from higher to lower pressure. If the pressure was same then there would be no airflow and if the pressure outside was higher , air will flow from outside to the inside of the balloon.

What is the relationship between volume and pressure?

Boyle's law is a gas law, stating that the pressure and volume of a gas have an inverse relationship. If volume increases, then pressure decreases and vice versa, when temperature is held constant. Therefore, when the volume is halved, the pressure is doubled; and if the volume is doubled, the pressure is halved.

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It depends on how many volume the container is in

How much cesium (half-life = 2 years) would remain from a 10 g sample after
4 years?
O A. Og
OB. 8g
O c. 59
O D. 29
SUBMIT

Answers

Answer: 2.5 grams

Explanation:

Expression for rate law for first order kinetics is given by:

[tex]t=\frac{2.303}{k}\log\frac{a}{a-x}[/tex]

where,

k = rate constant

t = age of sample

a = let initial amount of the reactant

a - x = amount left after decay process  

a) to calculate the rate constant:

Half life is the amount of time taken by a radioactive material to decay to half of its original value.

[tex]t_{\frac{1}{2}}=\frac{0.693}{k}[/tex]

[tex]k=\frac{0.693}{2years}=0.346years^{-1}[/tex]

b) to find amount left after 4 years

[tex]4=\frac{2.303}{0.346}\log\frac{10}{a-x}[/tex]

[tex](a-x)=2.5g[/tex]

Thus 2.5 g of cesium would remain from a 10 g sample after 4 years

CHEM HELP PLEASE

a reaction that has been calculated to produce 346 g of CH3OH actually produced 312 g of CH3OH. what is it's percent yield?

Answers

Answer:

90.2%

Explanation:

% yield = actual yield/ theoretical yield * 100%

% yield = (312/346)*100% = 90.2%


What is the total energy required to break all the bonds in 1 mol propanol,
C3H8O?

Answers

Answer:

The total energy to break all the bonds in 1 mole of 1-propanol, C₃H₈O, is 4411 kJ/mol

Explanation:

We note that propanol, C₃H₈O is also known as 1-propanol is written as follows;

CH₃CH₂CH₂OH which gives

CH₃-CH₂-CH₂-OH

Hence, the total number of bonds are;

C-H Bonds = 3 + 2 + 2 = 7

C-O Bonds = 1

O-H Bond = 1

C-C Bonds = 2

The bond energies are as follows;

C-H Bonds = 413 kJ/mol

C-O Bonds = 358 kJ/mol

O-H Bond = 468 kJ/mol

C-C Bonds = 347 kJ/mol

Energy required to break the bonds in 1-propanol is therefore;

C-H Bonds = 413 kJ/mol × 7 = 2,891 kJ/mol

C-O Bonds = 358 kJ/mol × 1 = 358 kJ/mol

O-H Bond = 468 kJ/mol × 1 = 468 kJ/mol

C-C Bonds = 347 kJ/mol × 2 = 694 kJ/mol

The total energy to break all the bonds in 1 mole of 1-propanol = 4411 kJ/mol.

Which factor affects gravitational potential energy but not elastic potential energy?

Answers

Answer:

spring constant. acceleration due to gravity. distance from a given position. amount of matter in the object.

Explanation:

hope this helps you :)

Answer:

spring constant

Explanation:

the particles with a negative charge are


1) protons
2)neutrons
3)electrons

Answers

Answer:

the particles with a negative charge are protons

I am sure it is electrons.
Other Questions
The compound ClF contains Group of answer choices polar covalent bonds with partial negative charges on the Cl atoms. ionic bonds. nonpolar covalent bonds. polar covalent bonds with partial negative charges on the F atoms. A party that enters into an illegal contract can recover the considerations given if the party: Select one: a. reports the illegal act to law enforcement after committing it. b. rescinds the contract before any illegal act has been performed. c. demonstrates an unequal bargain due to the illegal contract. d. rescinds the contract immediately after the illegal act has been performed. James would like to deposit enough money in a savings account to have $8,000 at the end of year 3. Assuming the investment will earn 5% compounded annually, what amount should James deposit in the savings account today Which two factors contributed to the extinction of many large mammals over the last several million years, including woolly mammoths, saber-toothed cats, and giant ground sloths? A.loss of habitat and contact with humans B.loss of habitat and low variation in population C.low population size and a warming environment D.a warming environment and contact with humans Solve for y: 3y + 6 = -45 Having Freckles is dominant (F), and not having is recessive (f). A mother has Ff and a father has ff. If They have a child,which genotype will make their child not have freckles. On May 1, 2021, Bonita Industries declared and issued a 10% common stock dividend. Prior to this dividend, Bonita had 195000 shares of $1 par value common stock issued and outstanding. The fair value of Bonita's common stock was $24 per share on May 1, 2021. As a result of this stock dividend, Bonita's total stockholders' equity:______a. decreased by $480700. b. increased by $480700. c. did not change. d. decreased by $23000. The velocity of an object in meters per second varies directly with time in seconds since the object was dropped, as represented by the table. The acceleration due to gravity is the constant of variation. What is the acceleration due to gravity of a falling object? 1. Your supports should tie back explicitly to your thesis.TrueFalse A cohort of 3000 individuals was chosen to be part of a study on the potential relationship between being infected with hepatitis C virus (HCV) and liver disease. 800 of the cohort members acquire an HCV infection and out of those infected persons 640 develop liver disease. 200 of the remaining cohort members also develop liver disease.A. What is the relative risk of developing liver disease based on exposure to HCV? B. What is the odds ratio for developing liver disease based on exposure to HCV? How was hitler projected under Nazi propaganda write a paragraph contrasting the values of working animals and the value of napoleon and the pigs. use evidence from the story so far to support your answer What is the x-value of the vertex?f(x)=(x+2)^21x-value of the vertex: What factor would have most likely prevented the problems that cities faced during urbanization A driver and a passenger are in a car accident. Each of them independently has probability 0.3 of being hospitalized. When a hospitalization occurs, the loss is uniformly distributed on [0, 1]. When two hospitalizations occur, the losses are independent. Calculate the expected number of people in the car who are hospitalized, given that the total loss due to hospitalizations from the accident is less than 1. What do enzymes do to solid food? Which of the following are true of trademarks?Check all of the boxes that apply.They protect logos.They protect fabric.They show who the maker of the item is.They can be registered with the government. If x = 4 and y = 8 , evaluate the following expression: x/y Give your answer as a fraction in its simplest form. pls help, need to pass! There are 42 citizens called for jury duty. Eleven are randomly chosen to for the interview phase. How many different ways can the group of interviewees be made?