Where do we use controlled fission?

Using complete sentences, explain how to predict the products and balance the reaction between sulfuric acid and potassium hydroxide.

Acertain atom has 22 protons and 19 electrons. this atom loses an electron. the net charge on the atom is now 4+1+01-4-. if this same atom with 22 protons and 19 electrons were to gain 3 electrons, the net charge on the atom would be 3+2+02-3-.

Which element below could be an isotope of berylliumsodium-10beryllium-10boron -9carbon-9