If the atomic number of an element is 6 and its mass number is 13, how many neutrons
are
contained in the nucleus?
19
8
7
6
Answer:
There will be 7 neutrons in a carbon isotope with an atomic mass of 13.
Explanation:
The number of protons in the carbon isotope will be the same as the atomic number, 6, so if we need an atomic mass of 13 there will be 7 neutrons, as 6+7=13.
If the atomic number of an element is 6 and its mass number is 13, there will be 7 neutrons. Therefore, the correct statement is option C.
What is atomic number?Atomic number is the number of protons found in the nucleus of an atom of a specific chemical element. The atomic number is also equal to the number of electrons orbiting around the nucleus in a neutral atom.
Mass number is the total number of protons and neutrons found in the nucleus of an atom and is represented by the symbol A. The mass number is used to determine the atomic mass of the atom.
The atomic number of an element is the number of protons present in its nucleus, which is 6. The mass number of an element is the total number of protons and neutrons in its nucleus, which is 13. So, the number of neutrons in the nucleus can be calculated by subtraction of the atomic number from the mass number.
The formula is number of neutrons = Mass number - Atomic number.
Therefore, there are 7 neutrons in the nucleus of the given element.
Learn more about the atomic number here:
https://brainly.com/question/16858932
#SPJ2
You and your friends go to the beach for vacation. You all walk down to the beach to go swimming. When you get there, you see the water is murky and green, and there are algae blooms floating on top. If it is excess nutrients which are feeding the algae blooms and lowering the oxygen content in the water, that process is called:_______.a. nutrient cycling.
b. nitrification.
c. eutrophication.
d. hypoxia.
Answer: The process is called EUTROPHICATION. The correct option is C.
Explanation:
Eutrophication is a type of environmental pollution where by there is an increase in nutrient salts of a water body which can lead to structural changes in the affected aquatic ecosystem. These changes includes:
--> Increase in production of algae: this effect causes algae blooms which makes the water murky, greenish and unpleasant for certain activities such as swimming.
--> Decrease in aquatic life: the presence of excessive growth of algae which are often degraded by microorganisms. When the rate of degradation of the algae by microorganisms is greater than that of oxygen regeneration a hypoxic state occurs which is harmful to aquatic life example fishes.
How might a plant cell compensate for the excessive membrane fluidity that occurs during prolonged exposures to elevated temperature?A) Reduce membrane cholesterol content.B) Alter the lipid composition to have longer fatty acyl tails and fewer double bonds.C) Alter the lipid composition to have shorter fatty acyl tails and more double bonds.D) Alter the lipid composition to have shorter and more unsaturated fatty acyl tails.E) Reduce cholesterol content and alter the lipid composition to have shorter fatty acyl tails.
Answer:
E) Reduce cholesterol content and alter the lipid composition to have shorter fatty acyl tails.
Explanation:
Reducing the amount of fat makes the tissues or membranes have less plasticity, since these fatty acids with high temperatures increase their fluidity, are less dense and give greater plasticity in their elastic modulus.
please help me with this question:)
Answer:
animal cell........ hope it's will help u n please mark me as brainliest answer
What effect does development, through erecting buildings and concrete pavement, have on the recharge of aquifers and the quality of the water?
Answer:
Infiltrate rate decreases and also water quality.
Explanation:
There is adverse effect of erecting buildings and concrete pavement on the recharge of aquifers and the quality of the water because the water is unable to infiltrate inside the soil due to concrete floor and the recharging of aquifers is not possible. These buildings and concrete pavements also reduces the quality of water due to degradation of sediments present in the building with the passage of time.
What does this model imply about the relationship between two processes All but one choice could apply
How does weathering affect Earth's surface?
Answer:
Weathering can wear away any exposed surface on earth over time. It can cause rough surfaces to become smooth, much like a tumbler smooths a rock. An obvious example of weathering is the change of the landscape at the sea. The tides can cause the beach to become smaller or larger.
Explanation:
Answer:
Weathering is the breaking down or dissolving of rocks and minerals on Earths surface.
Explanation:
Once a rock has been broken down, a process called erosion transports the bits of rock and minerals away. ... Weathering and erosion constantly change the rocky landscape of Earth. Weathering wears away exposed surfaces over time.
Which of these are common theories that explain how the First Americans came to North and South America?
Check all that are true.
They traveled across the ocean on boats.
They built a land bridge.
They rode across the ocean on large animals.
They migrated across Beringia.
Answer:
I'm pretty sure they migrated across Beringia with a land bridge... Let me know if I am wrong!
Explanation:
B and D
Which describes a altocumulus cloud?
a.
high, feathery cloud
c.
low storm cloud
b.
puffy mid-level cloud
d.
high cloud made of ice crystals
Please select the best answer from the choices provided
A
B
C
D
Answer:
B. Puffy mid-level cloud
if a nutrient were in short supply in an ecosystem, how might it effect an organism
Answer:
Its leads to a deficiency
Explanation:
If a nutrient is in short supply in an ecosystem, it will lead to a deficiency of such nutrient in organisms that are in need of the nutrient.
Such a deficiency can lead to diseases in the ecosystem. If organisms that requires the nutrient cannot find an alternative, it will seriously affect their well being. Such deficiency often lead to very dire consequences for the balance of the ecosystem at large.i need help with this
Answer:
c is ox and b it the h20 and a is the plastic cup?
10. Explain the difference between Biological & Cultural Carrying Capacity.
Answer:
I do not know
Explanation:
Answer: Biological carrying capacity describes which species are able to coexist in a niche. Cultural carrying capacity describes the ability of a human population to thrive and create culture in meager circumstances.
Explanation:
Please someone help me with my Biology questions. PLEASE
Answer:
I cant see the question
Explanation:
True or false?
An apple, potato, and onion all taste the same if you eat them with your nose plugged
Answer:
True
Explanation:
Answer:
True
Explanation:
It is frequently quoted that upwards of 80% of our taste is made up by smell. So if you plug your nose and cover your eyes, the taste between an apple and onion should be indistinguishable. Potato's will also taste the same .
what cause asexual reproduction
Answer:
It is a type of reproduction that does not involve the fusion of gametes or change in the number of chromosomes.
The offspring that are produced by asexual reproduction from a single cell or from a multicellular organism inherit the genes of that parent and thus have the sane identical identities of the parent.
The first organisms to appear on Earth did not need?
a. oxygen.
cells.
b. nitrogen
d chemicals
C
Please select the best answer from the choices provided
Ο Α
B
C
Answer:
ANS IS DDDDDDDDDDDDDDDDDDDDDDDDDDDDDdd
Explanation:
PLEASE HELP ME WITH THIS QUESTION
Answer:golgi apparatus
Explanation:
SOMEONE PLZ HELP ME!!!!!!!!!!!!!!!!!!!!!!
What do cells contain?
Answer:
cells consists of cytoplasm enclosed within a membrane, which contains many biomolecules such as protiens and nucleic acids.
Due in 1 minute please help
Answer
hhhhhhbbhnjhhhhbbbbbhhhh
Adam's wife is concerned about his recent behavior. He wanders from room to room in their home and often has difficulty finding the front door, yet his vision seems fine. He complains that he feels odd sensations on his skin like bugs landing on him but when he goes to brush them off there are no bugs.
What part of the brain is damaged?
What functions does this part of the brain perform?
Answer:
La esposa de Adam está preocupada por su comportamiento reciente. Vaga de una habitación a otra en su casa y, a menudo, tiene dificultades para encontrar la puerta principal, pero su visión parece estar bien. Se queja de que siente sensaciones extrañas en su piel como insectos que se posan sobre él, pero cuando va a sacudirlos no hay insectos.
¿Qué parte del cerebro está dañada?
¿Qué funciones realiza esta parte del cerebro?
Explanation:
Adam's wife is concerned about his recent behavior. He wanders from room to room in their home and often has difficulty finding the front door, yet his vision seems fine. He complains that he feels odd sensations on his skin like bugs landing on him but when he goes to brush them off there are no bugs.
What part of the brain is damaged?
What functions does this part of the brain perform?
Which describes an altocumulus cloud?
a.
high, feathery cloud
c.
low storm cloud
b.
puffy mid-level cloud
d.
high cloud made of ice crystals
Please select the best answer from the choices provided
A
B
C
D
Answer:
Puffy mid level-cloud.
Explanation:
So the answer is B. Got it right on edge 2021 Stay safe!!
Answer:
the answer is B.)
Explanation:
i did the quiz a week ago-
The Ebola virus can often have symptoms similar to bacterial pneumonia, an infection of the lungs. These symptoms include chest pains, shortness of breath, and fever. Which statement best summarizes the differences between these two diseases? (SC.6.L.14.6)a.Viruses can replicate because they are living organisms, while bacteria cannot. b.Viruses are not living organisms, but bacteria are living. c.Viruses can be beneficial to live organisms but bacteria are often infectious. d.Viruses are living organisms, while bacteria are not.
Answer:
Eblow is a terrible thing.
Explanation:
Answer:
I think its, option b) Viruses are not living organisms, but bacteria are living.
Explanation:
The other options don't fit "summarize the differences b/w bacteria and virus", or simply don't make sense...
Bacteria can replicate as well, not only virus, so that cannot be a difference
The virus is often the one being more dangerous, there is something called "good bacteria"
A virus isn't living, (for the sake of this answer), and we all know for sure that bacteria is living
So, that's how option b is correct
I hope this helped you!!
n
Which type of energy refers to the sum of potential and kinetic energies in the particles of a substance?
SERE
motion
stored
internal
heat
Answer:
internal energy.
In the human body, sodium—a component of salt—balances fluids, such as water, in the body. Explain how the onion experiment showed this. 20 BRAINLY POINTS PLZ HELP
Answer:
The salt worked like sodium on the onion.
Explanation:
ALOT OF POINTS
How do the sizes of sizes of lynx and hard affect each other?
Answer: When the population size of the hate increases there is more food for the links to eat. As a result the links population also increases. The large links population will kill more hairs so the hair population decreases this will also cause the hair population to decrease.
- Hope this Helps!
5. Some advantages of sexual reproduction include: (select all that apply) *
a.genetic variation
b.improves chances of adapting to the envionment
c.helps species survive catastrophes
d.Certian genes work beter than other
Some advantages of the sexual reproduction include genetic variation. Genetic variation results into changes in the genetic material (DNA). Thus, the correct option is A.
What is Genetic variation?Genetic variation is the difference in the DNA (deoxyribonucleic acid) among individuals or the difference between different populations. The multiple sources of genetic variation include mutations and genetic recombination. Mutation is the changes in the genetic material of an organism which are the ultimate sources of genetic variation, however other mechanisms, such as genetic drift, contribute to it, as well.
Genetic diversity is important because it gives the species a better chance of survival through variations. However, the genetic diversity can be lost from the species when the populations get smaller and isolated from each other, which decreases a species' ability to adapt and survive better in the condition.
Therefore, the correct option is A.
Learn more about Genetic variation here:
https://brainly.com/question/848479
#SPJ2
The largest mass extinction was in the
a. Precambrian time.
b. Cenozoic era.
C. Paleozoic era.
d. Mesozoic era.
Answer:
♡ hi fairy ♡
- Mesozoic, I just learned about this! it's so sad but it did help our society.
have a great day! hope i could help.
~madeline
✧･ﾟ: *✧･ﾟ:･ﾟ✧*:･ﾟ✧･ﾟ: *✧･ﾟ:･ﾟ✧*:･ﾟ✧
Explanation:
The largest mass extinction was in the: C. Paleozoic era.
The Paleozoic era is simply referred to as the earliest time of the three (3) geologic eras during the Phanerozoic era.
Generally, there are six (6) geologic periods in the Paleozoic era and they are listed from the youngest to oldest as;
The Permian.The Carboniferous.The Devonian.The Silurian.The Ordovician.The Cambrian.Some of the activities that took place between the start and end of the Paleozoic era time scale include;
I. In the early period of the Paleozoic era (The Cambrian), there were marine living organisms called phyla.
II. During the Paleozoic era, volcanic activities were experienced.
III. The Paleozoic era was prone to erosion and deposition of marine fossils.
IV. Lastly, the Paleozoic era was characterized by the largest mass extinction.
Read more: https://brainly.com/question/6560461
Which word defines the group of all penguins living together in one area?
A) habitat
B) population
C) species
D) community
Answer:
B) Population
2. Running water can be used as an energy
source to produce _____
power.
running water can be used as an energy source to produce hydroelectric power.