The ground state electronic configuration for magnesium is 1s22s22p63s2 . Which of the following would most likely result in an element being chemically similar to magnesium?
a. the valence subshell having 2 electrons
b. the valence electron being an s2 electron
c. the valence electron being a p2 electron
d. the valence electron having principal quantum number 3
B
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