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The 71st electron of an element X with an atomic number of 71 enters into the orbital : |
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(a) |
4f |
(b) |
6p |
|
(c) |
6s |
(d) |
5d |
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The 71st electron of an element X with an atomic number of 71 enters into the orbital : |
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|
(a) |
4f |
(b) |
6p |
|
(c) |
6s |
(d) |
5d |