Question

the atomic number of an element is the number of ______ plus the number of _____ found in the element's nucleus.

Answer 1

1. Protons 2. Neutrons?

Answer 2

protons and electrons

Step-by-step explanation:

The symbol for an atom can be written to show its mass number at the top, and its atomic number at the bottom. To calculate the numbers of subatomic particles in an atom, use its atomic number and mass number: number of protons = atomic number. number of electrons = atomic number.