NEET Test Series from KOTA - 10 Papers In MS WORD
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CHXI02:STRUCTURE OF ATOM
307304
The number of d - electrons in Ni is equal to that of the
1 s and p - electrons in \({{\rm{F}}^{\rm{ - }}}\)
2 p - electrons in Ar
3 d - electrons in \({\rm{N}}{{\rm{i}}^{{\rm{2 + }}}}\)
4 total number of electrons in N
Explanation:
\({\rm{Ni = [Ar]3}}{{\rm{d}}^{\rm{8}}}{\rm{4}}{{\rm{s}}^{\rm{2}}}\) Number of d - electrons \({\rm{ = 8}}\) \({\rm{(1)}}\,{\rm{F = 1}}{{\rm{s}}^{\rm{2}}}{\rm{2}}{{\rm{s}}^{\rm{2}}}{\rm{2}}{{\rm{p}}^{\rm{5}}}\) number of s and p - electrons \({\rm{ = 7}}\) \({\rm{(2)}}\,Ar{\rm{ = 1}}{{\rm{s}}^{\rm{2}}}{\rm{2}}{{\rm{s}}^{\rm{2}}}{\rm{2}}{{\rm{p}}^6}3{s^2}3{p^6}\) number of p-electrons \({\rm{ = 12}}\) \({\rm{(3)}}\,N{i^{2 + }} = [Ar]3{d^8}\) number of d - electrons \({\rm{ = 8}}\) \({\rm{(4)}}\) Atomic number of \({\rm{N = }}\) number of electrons \({\rm{ = 7}}\)
CHXI02:STRUCTURE OF ATOM
307305
What is spin only magnetic moment of an element having one unpaired electron?
1 \({\text{0}}{\text{.34 BM}}\)
2 \({\text{1}}{\text{.0 BM}}\)
3 \({\text{1}}{\text{.73 BM}}\)
4 \({\text{3}}{\text{.1 BM}}\)
Explanation:
Spin only magnetic momentum, \(\mathrm{\mu=\sqrt{\mathrm{n}(\mathrm{n}+2)} \mathrm{BM}}\) where \(\mathrm{\mathrm{n}=}\) number of unpaired electrons For \(\mathrm{\mathrm{n}=1, \mu=\sqrt{3}=1.73 \mathrm{BM}}\)
MHTCET - 2021
CHXI02:STRUCTURE OF ATOM
307306
The values of four quantum numbers of valence electron of an element \(\mathrm{X}\) is \(\mathrm{n=4,1=0, m=0}\), \(\mathrm{\mathrm{s}=\dfrac{1}{2}}\). The element is
1 \(\mathrm{\mathrm{K}}\)
2 \(\mathrm{\mathrm{Ti}}\)
3 \(\mathrm{\mathrm{Na}}\)
4 \(\mathrm{\mathrm{Sc}}\)
Explanation:
\(\mathrm{\mathrm{n}=4, l=0}\) means, it is \(\mathrm{4 \mathrm{~s}}\) orbital. So, the given values indicate the valence electron of potassium.
CHXI02:STRUCTURE OF ATOM
307307
The correct set of quantum numbers for the unpaired electron of a chlorine atom is
1 \(2,0,0,+1 / 2\)
2 \(2,1,-1,+1 / 2\)
3 \(3,1,-1, \pm 1 / 2\)
4 \(3,0,0, \pm 1 / 2\)
Explanation:
Electronic configuration of \(\mathrm{Cl}\)-atom \({\rm{ = 1}}\;{{\rm{s}}^{\rm{2}}}{\rm{,2}}\;{{\rm{s}}^{\rm{2}}}{\rm{2}}{{\rm{p}}^{\rm{6}}}{\rm{,3}}\;{{\rm{s}}^{\rm{2}}}{\rm{3}}{{\rm{p}}^{\rm{5}}}\) Unpaired electron is present in 3p-orbital that can be shown as,
307304
The number of d - electrons in Ni is equal to that of the
1 s and p - electrons in \({{\rm{F}}^{\rm{ - }}}\)
2 p - electrons in Ar
3 d - electrons in \({\rm{N}}{{\rm{i}}^{{\rm{2 + }}}}\)
4 total number of electrons in N
Explanation:
\({\rm{Ni = [Ar]3}}{{\rm{d}}^{\rm{8}}}{\rm{4}}{{\rm{s}}^{\rm{2}}}\) Number of d - electrons \({\rm{ = 8}}\) \({\rm{(1)}}\,{\rm{F = 1}}{{\rm{s}}^{\rm{2}}}{\rm{2}}{{\rm{s}}^{\rm{2}}}{\rm{2}}{{\rm{p}}^{\rm{5}}}\) number of s and p - electrons \({\rm{ = 7}}\) \({\rm{(2)}}\,Ar{\rm{ = 1}}{{\rm{s}}^{\rm{2}}}{\rm{2}}{{\rm{s}}^{\rm{2}}}{\rm{2}}{{\rm{p}}^6}3{s^2}3{p^6}\) number of p-electrons \({\rm{ = 12}}\) \({\rm{(3)}}\,N{i^{2 + }} = [Ar]3{d^8}\) number of d - electrons \({\rm{ = 8}}\) \({\rm{(4)}}\) Atomic number of \({\rm{N = }}\) number of electrons \({\rm{ = 7}}\)
CHXI02:STRUCTURE OF ATOM
307305
What is spin only magnetic moment of an element having one unpaired electron?
1 \({\text{0}}{\text{.34 BM}}\)
2 \({\text{1}}{\text{.0 BM}}\)
3 \({\text{1}}{\text{.73 BM}}\)
4 \({\text{3}}{\text{.1 BM}}\)
Explanation:
Spin only magnetic momentum, \(\mathrm{\mu=\sqrt{\mathrm{n}(\mathrm{n}+2)} \mathrm{BM}}\) where \(\mathrm{\mathrm{n}=}\) number of unpaired electrons For \(\mathrm{\mathrm{n}=1, \mu=\sqrt{3}=1.73 \mathrm{BM}}\)
MHTCET - 2021
CHXI02:STRUCTURE OF ATOM
307306
The values of four quantum numbers of valence electron of an element \(\mathrm{X}\) is \(\mathrm{n=4,1=0, m=0}\), \(\mathrm{\mathrm{s}=\dfrac{1}{2}}\). The element is
1 \(\mathrm{\mathrm{K}}\)
2 \(\mathrm{\mathrm{Ti}}\)
3 \(\mathrm{\mathrm{Na}}\)
4 \(\mathrm{\mathrm{Sc}}\)
Explanation:
\(\mathrm{\mathrm{n}=4, l=0}\) means, it is \(\mathrm{4 \mathrm{~s}}\) orbital. So, the given values indicate the valence electron of potassium.
CHXI02:STRUCTURE OF ATOM
307307
The correct set of quantum numbers for the unpaired electron of a chlorine atom is
1 \(2,0,0,+1 / 2\)
2 \(2,1,-1,+1 / 2\)
3 \(3,1,-1, \pm 1 / 2\)
4 \(3,0,0, \pm 1 / 2\)
Explanation:
Electronic configuration of \(\mathrm{Cl}\)-atom \({\rm{ = 1}}\;{{\rm{s}}^{\rm{2}}}{\rm{,2}}\;{{\rm{s}}^{\rm{2}}}{\rm{2}}{{\rm{p}}^{\rm{6}}}{\rm{,3}}\;{{\rm{s}}^{\rm{2}}}{\rm{3}}{{\rm{p}}^{\rm{5}}}\) Unpaired electron is present in 3p-orbital that can be shown as,
307304
The number of d - electrons in Ni is equal to that of the
1 s and p - electrons in \({{\rm{F}}^{\rm{ - }}}\)
2 p - electrons in Ar
3 d - electrons in \({\rm{N}}{{\rm{i}}^{{\rm{2 + }}}}\)
4 total number of electrons in N
Explanation:
\({\rm{Ni = [Ar]3}}{{\rm{d}}^{\rm{8}}}{\rm{4}}{{\rm{s}}^{\rm{2}}}\) Number of d - electrons \({\rm{ = 8}}\) \({\rm{(1)}}\,{\rm{F = 1}}{{\rm{s}}^{\rm{2}}}{\rm{2}}{{\rm{s}}^{\rm{2}}}{\rm{2}}{{\rm{p}}^{\rm{5}}}\) number of s and p - electrons \({\rm{ = 7}}\) \({\rm{(2)}}\,Ar{\rm{ = 1}}{{\rm{s}}^{\rm{2}}}{\rm{2}}{{\rm{s}}^{\rm{2}}}{\rm{2}}{{\rm{p}}^6}3{s^2}3{p^6}\) number of p-electrons \({\rm{ = 12}}\) \({\rm{(3)}}\,N{i^{2 + }} = [Ar]3{d^8}\) number of d - electrons \({\rm{ = 8}}\) \({\rm{(4)}}\) Atomic number of \({\rm{N = }}\) number of electrons \({\rm{ = 7}}\)
CHXI02:STRUCTURE OF ATOM
307305
What is spin only magnetic moment of an element having one unpaired electron?
1 \({\text{0}}{\text{.34 BM}}\)
2 \({\text{1}}{\text{.0 BM}}\)
3 \({\text{1}}{\text{.73 BM}}\)
4 \({\text{3}}{\text{.1 BM}}\)
Explanation:
Spin only magnetic momentum, \(\mathrm{\mu=\sqrt{\mathrm{n}(\mathrm{n}+2)} \mathrm{BM}}\) where \(\mathrm{\mathrm{n}=}\) number of unpaired electrons For \(\mathrm{\mathrm{n}=1, \mu=\sqrt{3}=1.73 \mathrm{BM}}\)
MHTCET - 2021
CHXI02:STRUCTURE OF ATOM
307306
The values of four quantum numbers of valence electron of an element \(\mathrm{X}\) is \(\mathrm{n=4,1=0, m=0}\), \(\mathrm{\mathrm{s}=\dfrac{1}{2}}\). The element is
1 \(\mathrm{\mathrm{K}}\)
2 \(\mathrm{\mathrm{Ti}}\)
3 \(\mathrm{\mathrm{Na}}\)
4 \(\mathrm{\mathrm{Sc}}\)
Explanation:
\(\mathrm{\mathrm{n}=4, l=0}\) means, it is \(\mathrm{4 \mathrm{~s}}\) orbital. So, the given values indicate the valence electron of potassium.
CHXI02:STRUCTURE OF ATOM
307307
The correct set of quantum numbers for the unpaired electron of a chlorine atom is
1 \(2,0,0,+1 / 2\)
2 \(2,1,-1,+1 / 2\)
3 \(3,1,-1, \pm 1 / 2\)
4 \(3,0,0, \pm 1 / 2\)
Explanation:
Electronic configuration of \(\mathrm{Cl}\)-atom \({\rm{ = 1}}\;{{\rm{s}}^{\rm{2}}}{\rm{,2}}\;{{\rm{s}}^{\rm{2}}}{\rm{2}}{{\rm{p}}^{\rm{6}}}{\rm{,3}}\;{{\rm{s}}^{\rm{2}}}{\rm{3}}{{\rm{p}}^{\rm{5}}}\) Unpaired electron is present in 3p-orbital that can be shown as,
307304
The number of d - electrons in Ni is equal to that of the
1 s and p - electrons in \({{\rm{F}}^{\rm{ - }}}\)
2 p - electrons in Ar
3 d - electrons in \({\rm{N}}{{\rm{i}}^{{\rm{2 + }}}}\)
4 total number of electrons in N
Explanation:
\({\rm{Ni = [Ar]3}}{{\rm{d}}^{\rm{8}}}{\rm{4}}{{\rm{s}}^{\rm{2}}}\) Number of d - electrons \({\rm{ = 8}}\) \({\rm{(1)}}\,{\rm{F = 1}}{{\rm{s}}^{\rm{2}}}{\rm{2}}{{\rm{s}}^{\rm{2}}}{\rm{2}}{{\rm{p}}^{\rm{5}}}\) number of s and p - electrons \({\rm{ = 7}}\) \({\rm{(2)}}\,Ar{\rm{ = 1}}{{\rm{s}}^{\rm{2}}}{\rm{2}}{{\rm{s}}^{\rm{2}}}{\rm{2}}{{\rm{p}}^6}3{s^2}3{p^6}\) number of p-electrons \({\rm{ = 12}}\) \({\rm{(3)}}\,N{i^{2 + }} = [Ar]3{d^8}\) number of d - electrons \({\rm{ = 8}}\) \({\rm{(4)}}\) Atomic number of \({\rm{N = }}\) number of electrons \({\rm{ = 7}}\)
CHXI02:STRUCTURE OF ATOM
307305
What is spin only magnetic moment of an element having one unpaired electron?
1 \({\text{0}}{\text{.34 BM}}\)
2 \({\text{1}}{\text{.0 BM}}\)
3 \({\text{1}}{\text{.73 BM}}\)
4 \({\text{3}}{\text{.1 BM}}\)
Explanation:
Spin only magnetic momentum, \(\mathrm{\mu=\sqrt{\mathrm{n}(\mathrm{n}+2)} \mathrm{BM}}\) where \(\mathrm{\mathrm{n}=}\) number of unpaired electrons For \(\mathrm{\mathrm{n}=1, \mu=\sqrt{3}=1.73 \mathrm{BM}}\)
MHTCET - 2021
CHXI02:STRUCTURE OF ATOM
307306
The values of four quantum numbers of valence electron of an element \(\mathrm{X}\) is \(\mathrm{n=4,1=0, m=0}\), \(\mathrm{\mathrm{s}=\dfrac{1}{2}}\). The element is
1 \(\mathrm{\mathrm{K}}\)
2 \(\mathrm{\mathrm{Ti}}\)
3 \(\mathrm{\mathrm{Na}}\)
4 \(\mathrm{\mathrm{Sc}}\)
Explanation:
\(\mathrm{\mathrm{n}=4, l=0}\) means, it is \(\mathrm{4 \mathrm{~s}}\) orbital. So, the given values indicate the valence electron of potassium.
CHXI02:STRUCTURE OF ATOM
307307
The correct set of quantum numbers for the unpaired electron of a chlorine atom is
1 \(2,0,0,+1 / 2\)
2 \(2,1,-1,+1 / 2\)
3 \(3,1,-1, \pm 1 / 2\)
4 \(3,0,0, \pm 1 / 2\)
Explanation:
Electronic configuration of \(\mathrm{Cl}\)-atom \({\rm{ = 1}}\;{{\rm{s}}^{\rm{2}}}{\rm{,2}}\;{{\rm{s}}^{\rm{2}}}{\rm{2}}{{\rm{p}}^{\rm{6}}}{\rm{,3}}\;{{\rm{s}}^{\rm{2}}}{\rm{3}}{{\rm{p}}^{\rm{5}}}\) Unpaired electron is present in 3p-orbital that can be shown as,
