Which of the following electronic configurati | vedclass

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(C) The stability of an electronic configuration is determined by the symmetry and exchange energy of the orbitals. According to Hund's rule,half-fill

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$3d^5 4s^1$

Vedclass · Answer

(C) The stability of an electronic configuration is determined by the symmetry and exchange energy of the orbitals. According to Hund's rule,half-filled and fully-filled orbitals are more stable due to their symmetrical distribution and higher exchange energy. The configuration $3d^5 4s^1$ represents a half-filled $d$-subshell $(d^5)$,which provides extra stability compared to the other given configurations.

Which of the following electronic configurations is more stable?

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The element with quantum numbers $n = 2, l = 1, m = 1, s = -1/2$ has the following position in the periodic table:

Electronic configuration of deuterium atom is

Write about $p$-orbitals.

An electron in the $5d$ orbital can be represented by the following $(n, l, m_l)$ values:

Assertion $(A)$: Atoms with completely filled and half-filled subshells are stable.
Reason $(R)$: Completely filled and half-filled subshells have symmetrical distribution of electrons and have maximum exchange energy.
The correct answer is:

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