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The D-And-f-Block Elements

Question

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Why is electronic configuration 1s²2s²2p⁶3s²3p⁶4s²3d⁴ not correct for ground state of Cr (24)?

Solution

The electronic configuration of a Chromium is 1s²2s²2p⁶3s²3p⁶4s²3d⁴ not correct for ground state.
Because its unstable and every metal tends to be stable thus the most stable configuration is 1s²2s²2p⁶3s²3p⁶4s¹ 3d⁵

Some More Questions From The d-And-f-Block Elements Chapter

On what ground can you say that scandium (Z = 21) is a transition element but zinc (Z = 30) is not?

The outer electronic configuration of copper is 3d¹⁰ 4s¹, yet it is considered transition element. Why?

Why the melting points of transition elements are high?

Why Zn, Cd and Hg are not regarded as transition elements?

Name the first element of 3rd transition series.

Though copper, silver and gold have completely filled sets of d-orbitals yet they are considered as transition metals. Why?

Why are transition elements so named?

Why are transition elements known as d-block elements?

Write the general electronic configuration of d-block elements.

Why do some exceptions to the general electronic configuration of d-block elements exists?

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