1
Q
Define the mass number of an atom
A
The total number of protons and neutrons in the nucleus
2
Q
Define the atomic number of an atom
A
The number of protons in the nucleus
3
Q
What is the charge of a proton?
A
+1
4
Q
What is the charge of an electron?
A
-1
5
Q
What is the charge of a neutron
A
0
6
Q
What is the mass of a proton?
A
1
7
Q
What is the mass of an electron?
A
1/1836
8
Q
What is the mass of a neutron?
A
1
Chemistry unit 1
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