Question

6.Which of the following is the reason for Zinc not exhibiting variable oxidation state
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Answer 1

Answer:

zinc atomic number is 30.It has configuration [Ar]4s2 3d10. If it loses 2es it has completely filled 3d shell and attain stability to exhibit more than oxygen state it should excite the electrons as the excitation energy is too high it does not exhibit variable oxygen state.

Answer 2

Zinc is a transition element.

• Zn has the atomic number 30.
• The electronic configuration of zinc is -
• ${1s}^{2} {2s}^{2} {2p}^{6} {3s}^{2} {3p}^{6} {4s}^{2} {3d}^{10}$
• Thus zinc has 10 electrons in its 3d shell.
• Thus zinc has completely filled 3d shell. So, it is in the most stable state. Thus zinc will not release its electrons easily.
• That's why zinc does not show variable oxidation state.