Chapter 4- Atoms/ Atomic Structure

Question 1

What does the atomic number/ atomic mass show? 
What are atoms made up of? 
What is the relative mass of protons &
Neutrons 
What is the relative charge of 
Protons 
Neutrons 
Electrons

Answer 1

Number of protons/ electrons 
Number of neutrons 
Neutrons Electrons and Protons 
1
\+1 
0
-1