jeremynan90 jeremynan90

24-06-2022
Chemistry

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An atom of elements x has one more shell of electrons than an atom of beryllium,but h are s one less valence electron then beryllium.which element is element X?

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Medunno13 Medunno13

24-06-2022

Element X is sodium.

If there is one more shell of electrons, then this means it is one period below.

Since there is one less valence electron, it is one group to the left.

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