Fe的外围电子排布式是?
A.1s22s22p63s23p64s23d6
B.1s22s22p63s23p63d64s2
C.1s22s22p63s23p63d8
D.1s22s22p63s23p63d24s24p2
正确答案:1s22s22p63s23p63d64s2
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