Viết cấu hình electron nguyên tử của các nguyên tố kim loại: K, Ca, Al, Fe, Cu, Cr.
A.K: 1s22s22p63s23p64s1
Ca: 1s22s22p63s23p64s2
Al: 1s22s22p63s23p1
Fe: 1s22s22p63s23p63d64s2
Cu: 1s22s22p63s23p63d104s1
Cr: 1s22s22p63s23p63d54s1
B.K: 1s22s22p63s23p64s1
Ca: 1s22s22p63s23p64s2
Al: 1s22s22p63s23p1
Fe: 1s22s22p63s23p63d64s2
Cu: 1s22s22p63s23p63d94s2
Cr: 1s22s22p63s23p63d54s1
C.K: 1s22s22p63s23p64s1
Ca: 1s22s22p63s23p64s2
Al: 1s22s22p63s23p1
Fe: 1s22s22p63s23p63d64s2
Cu: 1s22s22p63s23p63d104s1
Cr: 1s22s22p63s23p63d44s2
D.K: 1s22s22p63s23p64s1
Ca: 1s22s22p63s23p64s2
Al: 1s22s22p63s23p1
Fe: 1s22s22p63s23p63d74s1
Cu: 1s22s22p63s23p63d104s1
Cr: 1s22s22p63s23p63d54s1

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