Question

1. what happens to the total atomic number and mass number throughout a nuclear reaction? they are both conserved. they both increase. they both decrease. the mass is conserved and the atomic number decreases.

Explanation:

In nuclear reactions, the law of conservation of mass - number and atomic number applies. This means that the sum of the atomic numbers of the reactants is equal to the sum of the atomic numbers of the products, and the sum of the mass numbers of the reactants is equal to the sum of the mass numbers of the products.

Answer:

They are both conserved.