Atomic number Flashcards
1
Q
Nitrogen
A
7
2
Q
Phosphorus
A
15
3
Q
Calcium
A
20
4
Q
Silicon
A
14
5
Q
Fluorine
A
9
6
Q
Oxygen
A
8
7
Q
Magnesium
A
12
8
Q
Beryllium
A
4
9
Q
Helium
A
2
10
Q
Chlorine
A
17
11
Q
Sodium
A
11
12
Q
Carbon
A
6
13
Q
Hydrogen
A
1
14
Q
Aluminum
A
13
15
Q
Lithium
A
3
16
Q
Neon
A
10
17
Q
Boron
A
5
18
Q
Potassium
A
19
19
Q
Sulphur
A
16
20
Q
Argon
A
18
