Question

which statements describe nuclear reactions? check all that apply. nuclear reactions involve the nuclei of atoms. nuclear reactions involve the electrons of atoms. the products of nuclear reactions are lighter than the reactants. the products of nuclear reactions are heavier than the reactants. fission produces energy, while fusion requires energy.

Explanation:

Nuclear reactions involve changes in atomic nuclei. In some cases like fission, energy is released, and in fusion, energy is absorbed. Mass - energy conversion occurs, and products can be lighter or heavier depending on the reaction. Reactions focus on nuclei, not electrons.

Answer:

Nuclear reactions involve the nuclei of atoms.
The products of nuclear reactions can be lighter or heavier than the reactants depending on the type of reaction (fission or fusion).
Fission produces energy, while fusion can require energy under certain conditions.