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Filling of Electrons in Subshells

Which among t...

Question

Which among the given elements does not has 10 electrons in their d-orbitals?

A

Zinc (Zn)

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B

Mercury (Hg)

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C

Chromium (Cr)

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D

Silver (Ag)

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Solution

The correct option is C Chromium (Cr)
All the transition elements in the 11th and 12th group have 10 electrons in their d-orbitals. Chromium, which is a 6th group element, has 5 electrons in its d-orbitals.

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