Question

multiple - choice question what is true about the total atomic number on the left side of the arrow and the right side of the arrow? the total atomic number on the right side is equal to the atomic number on the left side the total atomic number on the right side is less than the atomic number on the left side the total atomic number on the right side is larger than the atomic number on the left side

Explanation:

Step1: Recall nuclear - reaction principle

In a nuclear reaction (such as the one implied here), the law of conservation of atomic number holds. The total number of protons (which determines the atomic number) on the reactant side (left - hand side of the arrow) must equal the total number of protons on the product side (right - hand side of the arrow).

Answer:

The total atomic number on the right side is equal to the atomic number on the left side