oscraftoc
oscraftoc oscraftoc
  • 22-01-2021
  • Chemistry
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an atom has atomic number 20, in which group and in what period is this atom located?

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mynameisjeff27362
mynameisjeff27362 mynameisjeff27362
  • 22-01-2021

Element: Calcium

Group: 2A/IIA(alkaline earth metals)

Period: 4

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