hannarose40
hannarose40 hannarose40
  • 10-04-2020
  • Chemistry
contestada

why must there be two chlorine atoms for every one calcium atom

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nelson4057
nelson4057 nelson4057
  • 10-04-2020

Answer:

There must be two Chlorine atoms for every one Calcium atom in order to fulfill Chlorine's octet rule and pair Calcium's unpaired electrons.

Explanation:

Calcium has two unpaired electrons in its Lewis dot structure, while Chlorine has one unpaired electron.

So why can't we just make a double bond for one Chlorine?

Chlorine has seven valence electrons, so once it shares electrons with Calcium, the octet rule is accomplished, and no more pairs can be made.

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