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20 June, 16:21

What is the name of the element with a valence electron configuration of 2s^22p^4

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  1. 20 June, 16:38
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    Since the configuration contains the number 2s and 2p, you can assume that it is in period 2 of the periodic table. By noble gas shorthand, you start with helium, which is atomic number 2. 2s²2p^4 has 2+4 = 6 valence

    Add 2+6 = 8, which is Oxygen.
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