periodic table first 20 elements Flashcards
1
Q
atomic number: 1
A
hydrogen
2
Q
1.01 amu
A
hydrogen
3
Q
H
A
hydrogen
4
Q
atomic number: 2
A
helium
5
Q
4.00 amu
A
helium
6
Q
He
A
helium
7
Q
atomic number: 3
A
lithium
8
Q
6.94 amu
A
lithium
9
Q
Li
A
lithium
10
Q
atomic number: 4
A
beryllium
11
Q
9.01 amu
A
beryllium
12
Q
Be
A
beryllium
13
Q
atomic number: 5
A
boron
14
Q
10.81 amu
A
boron
15
Q
B
A
boron
16
Q
atomic number: 6
A
carbon
17
Q
12.01 amu
A
carbon
18
Q
C
A
carbon
19
Q
atomic number: 7
A
nitrogen
20
Q
14.01 amu
A
nitrogen
21
Q
N
A
nitrogen
22
Q
atomic number: 8
A
oxygen
23
Q
16.00 amu
A
oxygen
24
Q
O
A
oxygen
