First 20 elements: Symbols & Valency Flashcards
1
Q
Hydrogen
A
H (1)
2
Q
Helium
A
He (0)
3
Q
Lithium
A
Li (1)
4
Q
Beryllium
A
Be (2)
5
Q
Boron
A
B (3)
6
Q
Carbon
A
C (4)
7
Q
Nitrogen
A
N (3)
8
Q
Oxygen
A
O (2)
9
Q
Fluorine
A
F (1)
10
Q
Neon
A
Ne (0)
11
Q
Sodium
A
Na (1)
12
Q
Magnesium
A
Mg (2)
13
Q
Aluminium
A
Al (3)
14
Q
Silicon
A
Si (4)
15
Q
Phosphorus
A
P (3,5)
16
Q
Sulphur
A
S (2)
17
Q
Chlorine
A
Cl (1)
18
Q
Argon
A
Ar (0)
19
Q
Potassium
A
K (1)
20
Q
Calcium
A
Ca (2)
