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15-10-2021
Chemistry

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How many valence electrons for this element having this electron configuration 1s2 2s2 2p6

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15-10-2021

Answer:

[tex]1 {s}^{2} 2{s}^{2} 2 {p}^{6} [/tex]

The outermost shell holds the so called valence electrons, therefore we have 8 electrons in that shell...

2s have 2 electrons and 2p hold 6 electrons 6+2=8

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