Paragraphs 10-14:
10:Consider helium again. Most helium atoms have two neutrons in addition to two protons. Therefore the mass of most helium atoms is 4 atomic mass units (2 amu for the protons + 2 amu for the neutrons). However, some helium atoms have more or less than two neutrons. Atoms with the same number of protons but different numbers of neutrons are called isotopes. Because the number of neutrons can vary for a given element, the mass numbers of different atoms of an element may also vary. For example, some helium atoms have three neutrons instead of two. Therefore, they have a different mass number than the one given in the figure above..

11:Q: What is the mass number of a helium atom that has three neutrons?

12:A: The mass number is the number of protons plus the number of neutrons. For helium atoms with three neutrons, the mass number is 2 (protons) + 3 (neutrons) = 5.

13:Q: How would you represent this isotope of helium to show its atomic number and mass number?

14:A: You would represent it by the element’s symbol and both numbers, with the mass number on top and the atomic number on the bottom:
5 He
2

Question:
There are two atoms of nitrogen: atom A and atom B. Nitrogen has an atomic number of 7. Atom A has a mass number of 15 and atom B has a mass number of 16. Are the two atoms isotopes? Why or why not?

EXTRA HELP

What is an isotope? What is different about atoms A and B? Use information from paragraphs 10-14 for additional help.

Answer:

2020?

Explanation:

If Kinetic energy has the shorted name of energy of motion, what is the shortened name for Potential Energy? options: Stored energy Newtons Awkward energy Joules help quickk ill give brainleist

This is not multiple choice..Please answer...if u don't know the answer just skip...and do not say "IDK ASK GOOGLE" I didn't find anything on google. and please no links..will reward brainliest to the first and correct answer

Describe the ways your proposed solutions decrease the negative effects of habitat destruction and human activity on your selected ecosystem.

Describe the costs, safety, and reliability of your proposed solutions, as well as any social, cultural, and environmental impacts your solutions address.

Evaluate your proposed solutions for their impact on overall environmental stability and changes. Which solution has more impact? Explain your reasoning for picking one solution over another.

How could you refine one of your proposed solutions to further reduce environmental impact and loss of biodiversity while also addressing human needs?

giving brain liest to whover helps me :)

List the levels of organization of an organism from smallest to largest

Which of these is an inorganic nutrient?

A) carbohydrate
B) vitamin D
C) pasta
D) water

What is a stationary front?
1.when a cold air mass remains in place
2.when a cold air mass and a warm air mass meet and don't move
3.when two cold air masses meet and don't move
4.when a warm air mass doesn't move

HELP PLEASE I NEED ANSWERS ASAP

Look at the science supplies.
Which is the best combination of tools to use to separate a mixture of sand, paper clips, gravel, and seashells?
(Look at the photo attached for the choices)

What is Planck's Law?

E = hf
E = mc (squared)

PUTING IN 12 POINTS BTW THIS IS SCIENCE
AND I AM BEING TIMED SO PLS HELP MEEEEEEEEE
Which of the following are characteristics of soft money?

i. donations from individuals and interest group PACs

ii. unregulated by the Federal Election Commission

iii. goes directly to a political candidate

iv. can be used for advertising or other campaign expenses

A.

i, ii, iii, and iv

B.

i and ii only

C.

i, iii, and iv only

D.

ii, iii, and iv only

HELP IT'S FOR SCIENCE CLASS


Wearing masks to avoid Corona VIrus is a behavioral adaptation

True
False

Classify each of the following sedimentary rock by writing clastic,organic,or chemical

The Sun is the largest, most luminous star to have ever existed.
True or False

All of the following is evidence to support the theory of continental drift except--



A.
matching fossils of extinct plants and animals on different coastlines.

B.
climatic evidence.

C.
similar rock formations.

D.
similar weather patterns.

If an ecosystem's balance is disturbed by a volcanic eruption, what will most likely occur?



A. The ecosystem will not change from its original state


B. The ecosystem will eventually become balanced again



C. The consumers in the ecosystem will begin to consume carbon dioxide


D. The consumers in the ecosystem will begin to produce more oxygen

PLS HELP

An adult fruit fly has eight total chromosomes and reproduces sexually. Correctly identify the parts of the diagram to show how a fruit fly reproduces.