Building an element

Question 1

What is the reletive charge of a proton, nuetron and electron?

Answer 1

Proton: positive +1
Nuetron: no charge 0
Electron: negative -1

Question 2

What is the big and small number on a element on the periodic table?

Answer 2

Big number: Atomic mass or mass- number of protons and nutrons in the nucleus.
Small number: Atomic number- number of protons in the nucleus (which equal number of electrons)