Question

What is the ground-state electron configuration of tantalum (Ta)?
A) 1s22s22p63s23p64s24p64d104f145s25p3
B) 1s22s22p63s23p63d104s24p64d105s25p3
C) 1s22s22p63s23p63d104s24p64d104f145s25p65d36s2
D) 1s22s22p63s23p63d104s24p64d105s25p65d3
E) 1s22s22p63s23p63d104s24p64d104f3

Answer

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