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furqan001:
& what is the calcium
plzz tell I don't know about physics
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atomic no.is 2+8+8+2=20
group of element=second group
period of element=fourth period
plzzz mark as brainlist
group of element=second group
period of element=fourth period
plzzz mark as brainlist
Answered by
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element is calcium
atomic no:20
group 2a
period 4
atomic no:20
group 2a
period 4
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