1
Q
What is the atomic number?
A
The smaller number on the element square
2
Q
What is the mass number?
A
The larger number on the element square
3
Q
What does the atomic number tell us?
A
The number of protons and electrons in an atom.
4
Q
What does the mass number tell us?
A
The number of protons + neutrons.
5
Q
What is the equation to find the number of neutrons in an atom?
A
Neutrons = Mass - Atomic
