Physics, asked by balamurugancvl1253, 9 hours ago

An element in period 3 with two valence electrons

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Answered by Ꮪαɾα
1

All elements in group 3 have 3 levels of energy. Na (sodium) has 3 valences the inner has 2 electrons, the middle has 8 electrons and the outer has 1 electron.

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