Element Calcium, Ca
20
Ca
40.08
Calcium
[Ar]
4s
2
Calcium Neighbours
Chemical Elements
11
Na
23.0
Sodium
12
Mg
24.3
Magnesium
13
Al
27.0
Aluminium
19
K
39.1
Potassium
20
Ca
40.1
Calcium
21
Sc
45.0
Scandium
37
Rb
85.5
Rubidium
38
Sr
87.6
Strontium
39
Y
88.9
Yttrium
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Calcium, Ca
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