nº
p*
Part 2 - Atomic Number Atomic Mass Mass Number
Fill in the blanks in the table below. All these elements below are NEUTRAL
Complete Name Complete Symbol
Atomic Mass
Atomic
(Complete it (Complete it
Number Mass Number
if it is incomplete) if it is incomplete)
1
Helium -
2
25 Mg
35
2
30
80
125
3
GA
45
5
Aluminum - 24
56
6
26
84
7
20
Kr
8
17
9
10
Uranium - 235
47
65
Na
11
31
12
21
10
13
14
32
15
Nickel - 61
26
Fe
16
24
65
29
17
18
52
13Cа
19
21
20
15
21
Potassium
14
22
76 AS
119
23
Sn
24
25
Barium - 136
