Chemistry, 13.10.2020 15:01, gaby8282

The electron configurations of two unknown elements X and Y are shown. X: 1s22s22p63s1
Y: 1s22s1

Which statement is most likely correct about the two elements?

Answers: 3

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The electron configurations of two unknown elements X and Y are shown. X: 1s22s22p63s1
Y: 1s2...