Which of the following statements is $CORRECT$ :
$(I)$ Where orbitals are available in degenerate sets,maximum spin multiplicity is observed.
$(II)$ Where two electrons occupy the same shell,they may have same spins.
$(III)$ All noble gases do not have the same valence shell electronic configuration.
$(I)$ Where orbitals are available in degenerate sets,maximum spin multiplicity is observed.
$(II)$ Where two electrons occupy the same shell,they may have same spins.
$(III)$ All noble gases do not have the same valence shell electronic configuration.
- AOnly $I$ and $III$
- BOnly $II$ and $III$
- COnly $I$ and $II$
- D$I, II$ and $III$
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Similar Questions
What is the ratio of time periods in the $3^{rd}$ orbit of $H^{-}$ atom to the $2^{nd}$ orbit of $He^{+}$ ion?
Difficult
View SolutionMatch the following items:
$A$. Energy of ground state of $He^+$ $i$. $+6.04 \text{ eV}$ $B$. Potential energy of $I$ orbit of $H$ atom $ii$. $-27.2 \text{ eV}$ $C$. Kinetic energy of $II$ excited state of $He^+$ $iii$. $8.72 \times 10^{-18} \text{ J}$ $D$. Ionization potential of $He^+$ $iv$. $-54.4 \text{ eV}$
| $A$. Energy of ground state of $He^+$ | $i$. $+6.04 \text{ eV}$ |
| $B$. Potential energy of $I$ orbit of $H$ atom | $ii$. $-27.2 \text{ eV}$ |
| $C$. Kinetic energy of $II$ excited state of $He^+$ | $iii$. $8.72 \times 10^{-18} \text{ J}$ |
| $D$. Ionization potential of $He^+$ | $iv$. $-54.4 \text{ eV}$ |
Difficult
View SolutionWhich one is the wrong statement?
DifficultNEET 2017
View SolutionIdentify the correct statements from the following:
$A$. Heisenberg uncertainty principle is applicable to electrons.
$B$. The size of $2p_x$ orbital is less than the size of $3p_x$ orbital.
$C$. The energy of $2s$ orbital of $H$ atom is equal to the energy of $2s$ orbital of $Li$.
$D$. The electronic configuration of $Cr$ is $[Ar]3d^5 4s^1$.
$A$. Heisenberg uncertainty principle is applicable to electrons.
$B$. The size of $2p_x$ orbital is less than the size of $3p_x$ orbital.
$C$. The energy of $2s$ orbital of $H$ atom is equal to the energy of $2s$ orbital of $Li$.
$D$. The electronic configuration of $Cr$ is $[Ar]3d^5 4s^1$.
Match the items in List-$I$ with the items in List-$II$.
List-$I$ List-$II$ $A$. Nodes $I$. Three dimensional shape of the orbital $B$. Subsidiary quantum number $II$. Significant only for motion of microscopic objects $C$. White light $III$. $|\psi|^2$ is zero $D$. Heisenberg uncertainty principle $IV$. Spin state of electron $V$. Continuous spectrum
| List-$I$ | List-$II$ |
|---|---|
| $A$. Nodes | $I$. Three dimensional shape of the orbital |
| $B$. Subsidiary quantum number | $II$. Significant only for motion of microscopic objects |
| $C$. White light | $III$. $|\psi|^2$ is zero |
| $D$. Heisenberg uncertainty principle | $IV$. Spin state of electron |
| $V$. Continuous spectrum |
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