When electrons are removed from the outermost shell of a calcium atom, what does the atom becomes?

Answer 1

AN ION...........?

The electronic configuration of #Ca# metal, #Z=20#, is #1s^(2)2s^(2)2p^(6)3s^(2)3p^(6)4s^2#. When the valence electrons are removed, calcium reverts to a #[Ar]# configuration. Does this address your question?

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Answer 2

Noah Aldrich

When electrons are removed from the outermost shell of a calcium atom, the atom becomes a calcium ion with a positive charge.

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Answer from HIX Tutor

When evaluating a one-sided limit, you need to be careful when a quantity is approaching zero since its sign is different depending on which way it is approaching zero from. Let us look at some examples.

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