1
Q
What is the mass of a proton
A
1
2
Q
What is the charge of a proton
A
+1
3
Q
What is the mass of an electron
A
1/1840
4
Q
What is the charge of an electron
A
-1
5
Q
What is the mass of a neutron
A
1
6
Q
What is the charge of the neutron
A
0
7
Q
What is the mass number?
A
It’s the total number of protons and neutrons in an atom
8
Q
What’s an atomic number
A
It’s the number of protons in an atom
9
Q
How do u get the number of neutrons?
A
Mass number - atomic number
10
Q
What’s the electronic structure that an atom can have
A
2,8,8
11
Q
The electrons orbit the nucleus of the atom and what are they arranged in ?
A
Shells
12
Q
What do protons have the same number as what
A
Electrons
Year 9 Chemistry
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