Question

The outer electron configuration of Gd (Atomic No : 64) is


1. 4f75d16s2

2. 4f35d56s2

3. 4f85d06s2

4. 4f45d46s2

Answer 1

hii your answer is option no.1) 4f75d16s2

Answer 2

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The outer electron configuration of Gd (Atomic No.: 64) is

    Xe 4f7 5d1 6s2

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