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Metals lose electrons under certain conditions to attain a noble-gas electron configuration. How many electrons must be lost by the element Ca?

Is it 2 e^-?

Which noble-gas electron configuration is attained in this process?
argon
radon
krypton
xenon
helium
neon

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5 answers
  1. Yes it is Ca.
    Look at Ca on the periodic chart and take two electrons away. Back up two and identify the noble gas.

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  2. Is it Argon?

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  3. yes.

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  4. where is the answer?

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  5. I would like to say sorry to jungkook:>

    -RM

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