First 20 elements Flashcards
1
Q
hydrogen
A
H
2
Q
H
A
hydrogen
3
Q
helium
A
He
4
Q
He
A
helium
5
Q
lithium
A
Li
6
Q
Li
A
lithium
7
Q
beryllium
A
Be
8
Q
Be
A
beryllium
9
Q
boron
A
B
10
Q
B
A
boron
11
Q
carbon
A
C
12
Q
C
A
carbon
13
Q
nitrogen
A
N
14
Q
N
A
nitrogen
15
Q
oxygen
A
O
16
Q
O
A
oxygen
