What does the number at the end of an element mean? (For example, Hydrogen-3)

Question

asked Feb 20, 2023 124k views

1 Answer

Friggle · Answer 1 · 2023-02-25T23:05:17+0000

Answer:

The top number is the total mass number, particles in an atom of an element that have mass are protons and neutrons.

Step-by-step explanation: