Here. I answered the first two questions for you..
Answer:
no electric charge
Neutron, neutral subatomic particle that is a constituent of every atomic nucleus except ordinary hydrogen. It has no electric charge and a rest mass equal to 1.67493 × 10−27 kg—marginally greater than that of the proton but nearly 1,839 times greater than that of the electron.
Explanation:
Passage of the Social Security Act (1935) helped American workers by "<span>(4) providing financial assistance after retirement" It still does this to this day for many. </span>
7 mass number is the number of protons and neutrons in an atom