MCQ
All electrons on the $4p$ sub-shell must be characterized by the quantum number $(s)$
  • A
    $n = 4,\,m = 0,\,s = \pm \frac{1}{2}$
  • $l = 1$
  • C
    $l = 0,\,s = \pm \frac{1}{2}$
  • D
    $s = \pm \frac{1}{2}$

Answer

Correct option: B.
$l = 1$
b
$n=4, m=0$

$s=\pm 1 / 2$

$l=1 \quad s=0, s=\pm 1 / 2$

$s=\pm 1 / 2$

Need a full question paper?

Generate a complete, print-ready paper with questions like this in minutes — across 16+ boards, with answer keys.

Start Generating Free

Similar questions

For the following gaseous reaction ${H_2} + {I_2}$ $\rightleftharpoons$ $2HI$, the equilibrium constant
The half life for the decomposition of gaseous compound $A$ is $240\,s$ when the gaseous pressure was $500\,Torr$ initially. When the pressure was $250\,Torr$, the half life was found to be $4.0\,min$. The order of the reaction is....... (Nearest integer)
Which orbital is dumb-bell shaped
The ionisation energy of a certain element is $1540\ kJ\ mol^{-1}$ . When the atoms of this element are in the first excited state, the ionisation energy is only $300\ kJ\ mol^{-1}$ . The region of the electromagnetic wave spectrum in which the light is emitted in a transition from the first excited state to the ground state.
Which of following is correct ?
For a reaction; $A + B \rightleftharpoons C + D$ , the initial concentration of $A$ and $B$ are equal but the equilibrium concentration of $C$ is twice that of equilibrium concentration of $A$. The $K_c$ is
Given below are two statements: one is labelled as Assertion A and the other is labelled as Reason $R$.

Assertion $A$ :Phenolphthalein is a $pH$ dependent indicator, remains colourless in acidic solution and gives pink colour in basic medium

Reason $R$ : Phenolphthalein is a weak acid. It doesn't dissociate in basic medium.

In the light of the above statements, choose the most appropriate answer from the options given below.

Paramagnetic and coloured ions are :-
The correct decreasing order of priority for the functional groups of organic compounds in the $IUPAC$ system of nomenclature is
Product $(A)$ is