Question

the chart below are
relative atomic masses) of the others
Atomic mass
Element
Element
Atomic mass
Element
1
4
7
19
20
Hydrogen
Helium
Lithium
Beryllium
Boron
Carbon
Nitrogen
Oxygen
Fluorine
Neon
Sodium
Magnesium
Aluminium
Silicon
Atomic mass
Phosphorus
Sulphur
32
Chlorine
35.5
Argon
Potassium
Calcium
9
11
12
24
14
28
40​

Answer 1

Answer:

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