Question

How many protons, electrons, and neutrons does an atom with atomic number
10 and mass number 20 contain?*

Answer 1

Answer:

protons : 10

electron : 10

neutron : 10

Explanation:

Protons will usually be the same as the electrons when its a Atom (when its a ion or covalent bond or simple bond they will most likely be different)

the atomic number represents protons and electrons

the mass number - the atomic number = neutron