Answer:
how does gravity affect something
Explanation:
they study physics.
hope this helped
Answer:
I'm pretty sure the correct answer is b, I took this quite a while ago so I might not be right I would do some research about it. hope I helped!
The atomic number is the total number of protons in the nucleus. The mass number is the total number of particles in the nucleus. That includes the neutrons and the protons. So, the atomic number is 31. When you look at the element on the periodic table with a designated atomic number of 31, that would be Gallium, with a symbol of Ga. Mass number is 31 + 36 = 67. So, the answer is A.