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An atom with atomic number of 20 and a plus 1 charge (Help)
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An atom with atomic number of 20 and a plus 1 charge
(Help)

User Rigby
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Answer:

calcium 20. charge of calcium is +2

2,8,8,2 is elecrons arrangement in the outermost shell.2 electrons in the outermost shell easily remove it. And form stable cations.

Step-by-step explanation:

User DimoMohit
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