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What is the correct electron configuration of an ion of calcium, ca+2?
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What is the correct electron configuration of an ion of calcium, ca+2?

User Tanmay Delhikar
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Answer:

Argon ( Ar)

Step-by-step explanation:

User Bquenin
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group 8, period 3

1s2 2s2 2p6 3s2 3p6
User Tom Greenwood
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