CHEMISTY ELEMENTS AND VALENCY Flashcards
1
Q
hydrogen
A
H
atomic mass: 1
2
Q
helium
A
He
atomic mass: 4
3
Q
lithium
A
Li
atomic mass: 7
4
Q
beryllium4
A
Be
atomic mass:9
5
Q
Boron
A
B
atomic mass 11
6
Q
carbon
A
C
atomic mass : 12
7
Q
nitrogen
A
N
atomic mass: 14
8
Q
oxygen
A
O
atomic mass: 16
9
Q
fluorine
A
F
atomic mass: 19
10
Q
Neon
A
Ne
atomic mass: 20
11
Q
sodium
A
Na
atomic mass: 23
12
Q
magnesium
A
Mg
atomic mass: 24
13
Q
aluminium
A
Al
atomic mass: 27
14
Q
silicone
A
Si
atomic mass: 28
15
Q
massphosphorus
A
P
atomic mass: 31
