The electron configuration of two elements with similar chemical properties are represented by?
-
A.
1s22s22p5 and 1s22s22p4 -
B.
1s22s22p4 and 1s22s22p63s1 -
C.
1s22s22p63s1 and 1s22s1 -
D.
1s22s22p4 and 1s22s1
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