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The element calcium (atomic number 20) has the electron configuration

1s2 2s2 2p6 3s2 3p6 4s2

or in noble gas form : [Ar] 4s2

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Marielle Crist

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3y ago

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What is the electronic configuration of calcium in calcium hydroxide?

The electronic configuration of calcium is 1s2 2s2 2p6 3s2 3p6 4s2. In calcium hydroxide (Ca(OH)2), calcium loses its two outer electrons to form Ca2+ ion, which has the electronic configuration 1s2 2s2 2p6 3s2 3p6.


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