Phosphorus has three unpaired electrons accor | vedclass

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(A) The electronic configuration of Phosphorus $(Z = 15)$ is $1s^2 2s^2 2p^6 3s^2 3p^3$. According to Hund's rule of maximum multiplicity,pairing of e

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Hund’s rule

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(A) The electronic configuration of Phosphorus $(Z = 15)$ is $1s^2 2s^2 2p^6 3s^2 3p^3$. According to Hund's rule of maximum multiplicity,pairing of electrons in the orbitals of a particular subshell $(p, d, f)$ does not take place until each orbital of that subshell is singly occupied. Since the $3p$ subshell has $3$ orbitals,the $3$ electrons in the $3p$ subshell occupy these orbitals singly,resulting in $3$ unpaired electrons.

List-$I$ (Quantum numbers)	List-$II$ (Orbital)
$A$. $n = 2, l = 1$	$I$. $3d$
$B$. $n = 4, l = 0$	$II$. $2p$
$C$. $n = 5, l = 3$	$III$. $4s$
$D$. $n = 3, l = 2$	$IV$. $5f$

Phosphorus has three unpaired electrons according to

Similar Questions

Which of the following pairs of atoms or ions have the same electronic configuration?

Match List-$I$ with List-$II$ :
List-$I$ (Quantum numbers) List-$II$ (Orbital)
$A$. $n = 2, l = 1$ $I$. $3d$
$B$. $n = 4, l = 0$ $II$. $2p$
$C$. $n = 5, l = 3$ $III$. $4s$
$D$. $n = 3, l = 2$ $IV$. $5f$

Choose the correct answer from the options given below :

Which of the following is the correct plot for the probability density $\psi^{2}(r)$ as a function of distance '$r$' of the electron from the nucleus for $2s$ orbital?

Possible number of orientations of a subshell is

Where does the electronic configuration occur in an atom?

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