First 20 Flashcards
1
Q
Hydrogen
A
1
H
2
Q
Helium
A
2
He
3
Q
Lithium
A
3
Li
4
Q
Beryllium
A
4
Be
5
Q
Boron
A
5
B
6
Q
Carbon
A
6
C
7
Q
Nitrogen
A
7
N
8
Q
Oxygen
A
8
O
9
Q
Oxygen
A
8
O
10
Q
Fluorine
A
9
F
11
Q
Neon
A
10
Ne
12
Q
Sodium
A
11
Na
13
Q
Magnesium
A
12
Mg
14
Q
Aluminium
A
13
Al
15
Q
Silicon
A
14
Si
16
Q
Phosphorus
A
15
P
17
Q
Sulphur
A
16
S
18
Q
Chlorine
A
17
Cl
19
Q
Argon
A
18
Ar
20
Q
Potassium
A
19
K
21
Q
Calcium
A
20
Ca
22
Q
Calcium
A
20
Ca
