How does knowing the number of valence electrons in one of the alien elements help to identify it? Explain how a periodic table is used to accomplish this task.

Answers

Answer 1
To know the valance electrons in of the alien element we should watch the outermost electron of the element.. the outermost electron will be the valance electron

Related Questions

When geneticists cut genes from one organism and insert them into the DNA sequence of another organism, the process is called

Answers

Recombinant DNA, molecules of DNA from two different species that are inserted into a host organism to produce new genetic combinations that are of value to science, medicine, agriculture, and industry.

The cutting of genes from one organism and inserting them into the DNA of another organism is called genetic engineering.

What is genetic engineering?

It is the process of using rDNA or recombinant DNA technology to change the genetic makeup of an organism. The humans have manipulated genomes indirectly traditionally by selecting offsprings with desired traits and controlling breeding.

The process involves direct manipulation of one or more genes. Generally, in the process, a gene from another species is supplemented to the genome of another organism to give it a desired phenotype.

Thus, the process is called genetic engineering.

Find out more information about genetic engineering here:

https://brainly.com/question/1399832

hello i need help again

Answers

Well as you might know, water is one of the most important abiotic factors essential for life. Without water, consumers would have nothing to drink. The plants under the water body might die too as they wouldn’t be able to photosynthesize. If the plants die, there’s less oxygen for the tiny water creatures. Some water creatures might die as well. If other animals don’t have water to drink, they’re going to die as well. Therefore, without water, most biotic factors would probably die due to the lack of efficiency in them performing life processes like photosynthesis and cellular respiration.
Well it would be bec honestly I just need the points sry but I like the power point also can u pls just thank this comment so I can’t get the point thx

Help!!!!!!!!!!!!!!!!!!!!!

Answers

Answer:

Bohr did

Explanation:

Answer:

i think its bohr

Explanation:

it looks like the planetary model of an atom

The diagram below shows a food web. The organisms in a food web can be classified based on how they
get the energy they need.




Which organism in this food web is a primary consumer?



A>mouse

B>snake

C.fox

D.hawk

Answers

It’s D hope this helps

PLEASE SOMEONE DO THIS, The questions are:
1) Mention 5 different types of pathogens and mention within each type one harmful and one harmless example.
2) What is the main difference between nonspecific and specific immune responses? Mention 3 examples for each of them.
3) Mention 6 examples of white blood cells. When blood is centrifuged, where do white blood cells are found?
4) Be able to mention all of the steps involved in humoral and cell mediated immunity. After mentioning the 4 steps, explain what is the reason every step is happening. Have in mind that you need to explain 8 steps, since there are 4 per mechanism.

Answers

Gonna take a while hold on

First person to answer it with all the question right gets brainly Est Question 1 (3 points)
To function on their own, what must unicellular organisms do?

Question 1 options:

work with other cells


perform a specialized task


make tissues


do all jobs for survival

Question 2 (3 points)
All living things are made of ______.

Question 2 options:

multicellular


tissues


cells


organisms

Question 3 (3 points)
A fish laying hundreds of eggs is an example of _________.

Question 3 options:

producing offspring


obtaining energy


all of the answers are correct


maintaining structure

Question 4 (3 points)
What do we call the branch of science for classification of organisms?

Question 4 options:

Taxonomy


Physics


Chemistry


Biology

Question 5 (3 points)
Which example is NOT a basic need of all organisms?

Question 5 options:

water


soil


food


appropriate enviornment

Question 6 (3 points)
All successful organisms must be able to do what three things?

Question 6 options:

obtain energy, produce offspring, eat


obtain energy, eat, play video games


maintain their structure, eat, build a home


obtain energy, produce offspring, maintain their structure

Question 7 (3 points)
Which example is NOT an organism?

Question 7 options:

bacteria


mold


human


lung

Question 8 (3 points)
What is an example of "maintaining structure"?

Question 8 options:

eating an apple


a cell dividing


healing a broken arm


catching a fish

Question 9 (3 points)
Which type of organism is ale to cause an infection or contagious disease?

Question 9 options:

rose


plant


animal


bacteria

Question 10 (3 points)
Saved
What do all living things need?

Question 10 options:

energy, water, sunshine, and protection


oxygen, an outer covering, parents, vitamins


food, water, air, and a place to live


water, parents, a place to live, and air

Answers

2. cells
3. producing offspring
4. biology
5. soil
6. i think obtain energy produce offspring and eat
7. lung
8. healing a broken arm
9. bacteria
10. energy water sunshine and protection

Answer:

Unicellular organisms include bacteria and some protists and fungi. Many unicellular organisms live in bodies of water and must move around to find food. Most often, they must obtain nutrients by eating other organisms. Plant-like protists, and some types of bacteria, can make their own food through photosynthesis.

Cells

All of the answer are correct r it is Producing offspring

Biology

Soil

obtain Energy,Produce offspring and maintain their structure

Lung

A cell Dividing

Bacteria

energy water sunshine and protection

Explanation:

I think i got some wrong like one or two.

ok i got it
please help

Answers

imagine isn’t loading!!!
the image isn't loading:(

QUICK AND EASY FOR SOME POINTSSSSSS
______________ is the name for the process of clearing natural vegetation and replacing it with concrete and buildings

Answers

Answer:

it’s b

Explanation:

Which of the following is true about the sun's radiation? It is long-wave. It is short-wave. 40 percent is reflected by the atmosphere. 60 percent reaches Earth's surface. None of the rays are harmful.

Answers

Answer:

it's long wave, 40% is reflected by the atmosphere, 60% reaches Earth's

Explanation:

Organism's traits depend on the____in its cells.

1.colors

2.fats

3. lipids

4. proteins

Answers

2 fats
I took this test and I got it right

hey help please......

Answers

look at the animals and decide if they would be able to survive in a place like so

Answer:

Biotic:The bugs and the trees

Explanation:

The bugs wouldn’t be eaten by the frogs because frogs rely on water and the trees would survive from rain.

In the diagram of the wave shown, the area labeled 2 refers to the -

A: amplitude
B: compression
C: crest
D: wavelength

Answers

Answer:Hello! It’s wave length.

Explanation:

The answer is wavelength

Scientists recorded the size of a population of house finches in a forest ecosystem from the years
1995 to 2005. The graph below shows the information that was recorded.




What change in the limiting factors in the ecosystem could have caused the population change that
occurred between 2001 and 2002? Explain your reasoning.

Answers

Answer:

Limiting variables include a low supply of food and lack of room. Limiting variables may reduce birth rates, increase death rates, or contribute to emigration.   Limiting factors determine a population's carrying capacity. Recall that the population grows exponentially when there are no limiting factors.

Explanation:

Hope this helps you!

Answer:

climate or natural calamity

Explanation:

If you saw a new moon on Sunday, when will you probably see a full moon?
A) on Sunday in one week
B) a week from Friday
C) on Sunday in two weeks
D) on Wednesday in two weeks

Answers

i think it’s c on a sunday in two weeks

Answer:

A week from Friday

Explanation:

I gave my best guess, sorry if it is wrong

Which statement explains why secondary succession is generally more rapid than primary succession?
An area of secondary succession has never been colonized.
There are no competing organisms in secondary succession.
The soil is already present at the start of secondary succession.
Pioneer species in secondary succession include bacteria.

Answers

Answer:

The soil is already present at the start of secondary succession.

Explanation:

Secondary succession is usually faster than primary succession because soil and nutrients are already present due to 'normalization' by previous pioneer species.

When the moon blocks the sun's light, a ____ eclipse occurs.
A. solar
B. lunar
C. partial
D. full

Answers

The sun is completely blocked in a solar eclipse so A
A. Solar because when it blocks it Mars solar

With 20 points, please answer!

Answers

Thermal energy. I took the quiz!

THIS IS THE THIRD ASKING thIS QUESTION
only number 3

Answers

Answer:

3.) The giraffe has adapted by it's neck length increasing to reach the branches

4.) Biotic factors

Explanation:

QUESTION 3: Due to the leaves growing towards the top of tree rather than around, the giraffes neck length impacts the access to the leaves, so they have adapted by increasing their neck length.

QUESTION 4: Giraffes and trees are both living things, therefore they are biotic factors.

The guy above is correct I’m just here to confirm it the giraffe adapted to this problem by growing a long neck and just basically being tall in general but most of its height comes from it’s neck

Which type of molecule speeds up chemical reactions in living things?

Lipid
Nucleic acid
Protein
Water

Answers

Answer:

The answer is Protein

Explanation:

Hope this helped <3

It’s Protein I’m sure

Light energy travels as -

A: compressional waves
B: primary waves
C: surface waves
D: transverse waves

Answers

it would be transverse waves !

Answer:

D

Explanation:

Margaret Brown traveled to France to
A. recuperate
B. vessel
C. gazed
from so much hard work in her community.

Answers

Answer:

A. recuperate

Explanation: I searched the definitions

It’s A none of the other answers make any sense

Is the following statement true or false:
It takes the same amount of time for the moon to rotate on its axis as it takes it to complete a revolution around the earth.

Answers

The statement is True.
Yes!!! The time it takes for the Moon to rotate once around its axis is equal to the time it takes for the Moon to orbit once around Earth. This keeps the same side of the Moon facing towards Earth throughout the whole month.

The picture below shows a mangrove ecosystem. In this ecosystem, pelicans nest in mangrove trees.
Crabs consume mangrove leaf litter. Snails consume algae on mangrove roots.



How would a decrease in mangrove trees in this ecosystem affect the other living things there?



A.Snail, crab, and pelican populations would decrease.

B.Snail and crab populations would decrease while pelican populations would increase.

C.Pelican populations would decrease while snail and crab populations would increase.

D.Snail, crab, and pelican populations would increase.

Answers

Answer:

A

Explanation:

if the mangrove trees population decreased then the animals that fly on the mangrove trees would go somewhere else to find somewhere to live so the population would decrease of all of the animals but use the mangrove trees

the correct answer is A :)

Assignment: Energy Flow in Ecosystems Exploration
NOTE: Don't forget to submit a photo or scanned image of your food chain display diagram
OR the digital file of your food chain diagram along with this assignment worksheet.
(I have already answered all the questions, I just need a display/diagram) To send me the picture please use one of these apps:
disc ord: * *#9599

Snapcha t: xxeag19

Answers

Answer:

ok, i will send

Explanation:

Why is Professor Jean-Jacques Muyembe-Tamfum's research and scientific contribution to the medical community an important source of information to the world?

Answers

they devoted the last four decades to researching Ebola virus disease

Which characteristic of our solar system is most crucial to support life on Earth?
A.the length of time of earths revolution
B.distance between the earth and sun
C.the distance between the sun and other stars

Answers

Answer:

it is option B hope it helps

B. distance between the earth and sun

What type of current is most likely found in the deeper ocean depths, and why?

Answers

Answer:

The Explanation for the Question:

Deep ocean currents, a.k.a Thermohaline Circulation, are caused by the sinking and the transportation of large masses of cold water, which is guided by density inclines due to contrasts in temperature and salinity. Deep currents are also caused by the earth's rotaion.

Hope this helps! :)

The _____ controls what enters and leaves the cell.
1.mitochondria
2.endoplasmic reticulum
3.nucleus
4.cell membrane

Answers

cell membrane


hekwkwolwkwks
Cell membrane is your answer.

PLEASE HELP, this is for science water molecules

Answers

Answer: Both

Explanation:

The molecules will move unless the water is frozen

The population size of organisms in an ecosystem is based on a variety of limiting factors. The graph
below shows how a rabbit population changed in size over a five-year time period.



Based on the information in the graph, what is the maximum number of rabbits that can obtain
what they need to survive in this ecosystem?



A.about 35

B.about 10

C.about 5

D.about 25

Answers

Answer:

A

Explanation:

In the graph below, the maximum number of rabbits that can live and survive in the ecosystem is the 35 that are present in Option A, as it is the highest carrying capacity of the ecosystem.

What is the influence of carrying capacity on rabbits?

carrying capacity of the ecosystem depends upon many factors such as space, food availability, suitability, etc., and as per that, the carrying capacity differs. The graph here is plotted between the rabbit and the years, so the ecosystem can only support up to 35 rabbits, and any more would result in rabbit decline due to fewer foods and unsuitability of the environment.

Hence, in the graph below, the maximum number of rabbits that can live and survive in the ecosystem is the 35 that are present in Option A, as it is the highest carrying capacity of the ecosystem.

Learn more about the carrying capacity here.

https://brainly.com/question/2375972

#SPJ6

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