Classification of Elements and Periodicity in Properties
89678
Which of the following has the highest first IP?
1 $\mathrm{Al}$
2 $\mathrm{Si}$
3 $\mathrm{K}$
4 $\mathrm{P}$
Explanation:
The amount of energy required to remove electron from an isolated atom or molecule. Phosphorus has highest first ionisation potential due to half filled orbitals. It has stable configuration than other. Electronic configuration of phosphorus. $$ \mathrm{P}=1 \mathrm{~s}^2 2 \mathrm{~s}^2 2 \mathrm{p}^6 3 \mathrm{~s}^2 3 \mathrm{p}^3 $$
A.P.EAMCET 2000
Classification of Elements and Periodicity in Properties
89694
The incorrect statement among the following is 6. Electron Affinity
1 the first ionisation potential of $\mathrm{Al}$ is less than the first ionisation potential of $\mathrm{Mg}$
2 the second ionisation potential of $\mathrm{Mg}$ is greater than the second ionisation potential of $\mathrm{Na}$
3 The first ionisation potential of $\mathrm{Na}$ is less than the first ionisation potential of $\mathrm{Mg}$
4 the third ionisation potential of $\mathrm{Mg}$ is greater than the third ionisation potential of $\mathrm{Al}$
Explanation:
The second ionisation potential of $\mathrm{Mg}$ is less than the second ionisation potential of $\mathrm{Na}$. $\mathrm{Na}=\mathrm{IE}_2=4560 \mathrm{~kJ} / \mathrm{mol}$ $\mathrm{Mg}=\mathrm{I} . \mathrm{E}_2=1450 \mathrm{~kJ} / \mathrm{mol}$ Hence the option (b) is correct.
IIT JEE
Classification of Elements and Periodicity in Properties
89695
The incorrect statement among the following is 6. Electron Affinity
1 the first ionisation potential of $\mathrm{Al}$ is less than the first ionisation potential of $\mathrm{Mg}$
2 the second ionisation potential of $\mathrm{Mg}$ is greater than the second ionisation potential of $\mathrm{Na}$
3 The first ionisation potential of $\mathrm{Na}$ is less than the first ionisation potential of $\mathrm{Mg}$
4 the third ionisation potential of $\mathrm{Mg}$ is greater than the third ionisation potential of $\mathrm{Al}$
Explanation:
The second ionisation potential of $\mathrm{Mg}$ is less than the second ionisation potential of $\mathrm{Na}$. $\mathrm{Na}=\mathrm{IE}_2=4560 \mathrm{~kJ} / \mathrm{mol}$ $\mathrm{Mg}=\mathrm{I} . \mathrm{E}_2=1450 \mathrm{~kJ} / \mathrm{mol}$ Hence the option (b) is correct.
IIT JEE
Classification of Elements and Periodicity in Properties
89630
Which of the following elements has highest ionisation potential?
1 $\mathrm{B}$
2 $\mathrm{C}$
3 $\mathrm{N}$
4 $\mathrm{O}$
Explanation:
Amount of energy required to remove an $\mathrm{e}^{-}$ from the valence shell called ionisation energy. Nitrogen has greater ionization energy than oxygen because nitrogen has half filled stable configuration than the other element so removal of electron required the more energy hence highest ionisation potential.
MPPET - 2012
Classification of Elements and Periodicity in Properties
89631
The atomic number of the element with highest ionization energy among the following is
1 $\mathrm{Z}=16$
2 $Z=14$
3 $Z=13$
4 $Z=15$
Explanation:
For element with $\mathrm{Z}=15$, electronic configuration is $1 \mathrm{~s}^2 2 \mathrm{~s}^2 2 \mathrm{p}^6 3 \mathrm{~s}^2 3 \mathrm{p}_{\mathrm{x}}^1 3 \mathrm{p}_{\mathrm{y}}^1 3 \mathrm{p}_z^1$. Due to exactly half filled configuration of $3 \mathrm{p}$ orbital, the element will have the highest ionization energy.
Classification of Elements and Periodicity in Properties
89678
Which of the following has the highest first IP?
1 $\mathrm{Al}$
2 $\mathrm{Si}$
3 $\mathrm{K}$
4 $\mathrm{P}$
Explanation:
The amount of energy required to remove electron from an isolated atom or molecule. Phosphorus has highest first ionisation potential due to half filled orbitals. It has stable configuration than other. Electronic configuration of phosphorus. $$ \mathrm{P}=1 \mathrm{~s}^2 2 \mathrm{~s}^2 2 \mathrm{p}^6 3 \mathrm{~s}^2 3 \mathrm{p}^3 $$
A.P.EAMCET 2000
Classification of Elements and Periodicity in Properties
89694
The incorrect statement among the following is 6. Electron Affinity
1 the first ionisation potential of $\mathrm{Al}$ is less than the first ionisation potential of $\mathrm{Mg}$
2 the second ionisation potential of $\mathrm{Mg}$ is greater than the second ionisation potential of $\mathrm{Na}$
3 The first ionisation potential of $\mathrm{Na}$ is less than the first ionisation potential of $\mathrm{Mg}$
4 the third ionisation potential of $\mathrm{Mg}$ is greater than the third ionisation potential of $\mathrm{Al}$
Explanation:
The second ionisation potential of $\mathrm{Mg}$ is less than the second ionisation potential of $\mathrm{Na}$. $\mathrm{Na}=\mathrm{IE}_2=4560 \mathrm{~kJ} / \mathrm{mol}$ $\mathrm{Mg}=\mathrm{I} . \mathrm{E}_2=1450 \mathrm{~kJ} / \mathrm{mol}$ Hence the option (b) is correct.
IIT JEE
Classification of Elements and Periodicity in Properties
89695
The incorrect statement among the following is 6. Electron Affinity
1 the first ionisation potential of $\mathrm{Al}$ is less than the first ionisation potential of $\mathrm{Mg}$
2 the second ionisation potential of $\mathrm{Mg}$ is greater than the second ionisation potential of $\mathrm{Na}$
3 The first ionisation potential of $\mathrm{Na}$ is less than the first ionisation potential of $\mathrm{Mg}$
4 the third ionisation potential of $\mathrm{Mg}$ is greater than the third ionisation potential of $\mathrm{Al}$
Explanation:
The second ionisation potential of $\mathrm{Mg}$ is less than the second ionisation potential of $\mathrm{Na}$. $\mathrm{Na}=\mathrm{IE}_2=4560 \mathrm{~kJ} / \mathrm{mol}$ $\mathrm{Mg}=\mathrm{I} . \mathrm{E}_2=1450 \mathrm{~kJ} / \mathrm{mol}$ Hence the option (b) is correct.
IIT JEE
Classification of Elements and Periodicity in Properties
89630
Which of the following elements has highest ionisation potential?
1 $\mathrm{B}$
2 $\mathrm{C}$
3 $\mathrm{N}$
4 $\mathrm{O}$
Explanation:
Amount of energy required to remove an $\mathrm{e}^{-}$ from the valence shell called ionisation energy. Nitrogen has greater ionization energy than oxygen because nitrogen has half filled stable configuration than the other element so removal of electron required the more energy hence highest ionisation potential.
MPPET - 2012
Classification of Elements and Periodicity in Properties
89631
The atomic number of the element with highest ionization energy among the following is
1 $\mathrm{Z}=16$
2 $Z=14$
3 $Z=13$
4 $Z=15$
Explanation:
For element with $\mathrm{Z}=15$, electronic configuration is $1 \mathrm{~s}^2 2 \mathrm{~s}^2 2 \mathrm{p}^6 3 \mathrm{~s}^2 3 \mathrm{p}_{\mathrm{x}}^1 3 \mathrm{p}_{\mathrm{y}}^1 3 \mathrm{p}_z^1$. Due to exactly half filled configuration of $3 \mathrm{p}$ orbital, the element will have the highest ionization energy.
NEET Test Series from KOTA - 10 Papers In MS WORD
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Classification of Elements and Periodicity in Properties
89678
Which of the following has the highest first IP?
1 $\mathrm{Al}$
2 $\mathrm{Si}$
3 $\mathrm{K}$
4 $\mathrm{P}$
Explanation:
The amount of energy required to remove electron from an isolated atom or molecule. Phosphorus has highest first ionisation potential due to half filled orbitals. It has stable configuration than other. Electronic configuration of phosphorus. $$ \mathrm{P}=1 \mathrm{~s}^2 2 \mathrm{~s}^2 2 \mathrm{p}^6 3 \mathrm{~s}^2 3 \mathrm{p}^3 $$
A.P.EAMCET 2000
Classification of Elements and Periodicity in Properties
89694
The incorrect statement among the following is 6. Electron Affinity
1 the first ionisation potential of $\mathrm{Al}$ is less than the first ionisation potential of $\mathrm{Mg}$
2 the second ionisation potential of $\mathrm{Mg}$ is greater than the second ionisation potential of $\mathrm{Na}$
3 The first ionisation potential of $\mathrm{Na}$ is less than the first ionisation potential of $\mathrm{Mg}$
4 the third ionisation potential of $\mathrm{Mg}$ is greater than the third ionisation potential of $\mathrm{Al}$
Explanation:
The second ionisation potential of $\mathrm{Mg}$ is less than the second ionisation potential of $\mathrm{Na}$. $\mathrm{Na}=\mathrm{IE}_2=4560 \mathrm{~kJ} / \mathrm{mol}$ $\mathrm{Mg}=\mathrm{I} . \mathrm{E}_2=1450 \mathrm{~kJ} / \mathrm{mol}$ Hence the option (b) is correct.
IIT JEE
Classification of Elements and Periodicity in Properties
89695
The incorrect statement among the following is 6. Electron Affinity
1 the first ionisation potential of $\mathrm{Al}$ is less than the first ionisation potential of $\mathrm{Mg}$
2 the second ionisation potential of $\mathrm{Mg}$ is greater than the second ionisation potential of $\mathrm{Na}$
3 The first ionisation potential of $\mathrm{Na}$ is less than the first ionisation potential of $\mathrm{Mg}$
4 the third ionisation potential of $\mathrm{Mg}$ is greater than the third ionisation potential of $\mathrm{Al}$
Explanation:
The second ionisation potential of $\mathrm{Mg}$ is less than the second ionisation potential of $\mathrm{Na}$. $\mathrm{Na}=\mathrm{IE}_2=4560 \mathrm{~kJ} / \mathrm{mol}$ $\mathrm{Mg}=\mathrm{I} . \mathrm{E}_2=1450 \mathrm{~kJ} / \mathrm{mol}$ Hence the option (b) is correct.
IIT JEE
Classification of Elements and Periodicity in Properties
89630
Which of the following elements has highest ionisation potential?
1 $\mathrm{B}$
2 $\mathrm{C}$
3 $\mathrm{N}$
4 $\mathrm{O}$
Explanation:
Amount of energy required to remove an $\mathrm{e}^{-}$ from the valence shell called ionisation energy. Nitrogen has greater ionization energy than oxygen because nitrogen has half filled stable configuration than the other element so removal of electron required the more energy hence highest ionisation potential.
MPPET - 2012
Classification of Elements and Periodicity in Properties
89631
The atomic number of the element with highest ionization energy among the following is
1 $\mathrm{Z}=16$
2 $Z=14$
3 $Z=13$
4 $Z=15$
Explanation:
For element with $\mathrm{Z}=15$, electronic configuration is $1 \mathrm{~s}^2 2 \mathrm{~s}^2 2 \mathrm{p}^6 3 \mathrm{~s}^2 3 \mathrm{p}_{\mathrm{x}}^1 3 \mathrm{p}_{\mathrm{y}}^1 3 \mathrm{p}_z^1$. Due to exactly half filled configuration of $3 \mathrm{p}$ orbital, the element will have the highest ionization energy.
Classification of Elements and Periodicity in Properties
89678
Which of the following has the highest first IP?
1 $\mathrm{Al}$
2 $\mathrm{Si}$
3 $\mathrm{K}$
4 $\mathrm{P}$
Explanation:
The amount of energy required to remove electron from an isolated atom or molecule. Phosphorus has highest first ionisation potential due to half filled orbitals. It has stable configuration than other. Electronic configuration of phosphorus. $$ \mathrm{P}=1 \mathrm{~s}^2 2 \mathrm{~s}^2 2 \mathrm{p}^6 3 \mathrm{~s}^2 3 \mathrm{p}^3 $$
A.P.EAMCET 2000
Classification of Elements and Periodicity in Properties
89694
The incorrect statement among the following is 6. Electron Affinity
1 the first ionisation potential of $\mathrm{Al}$ is less than the first ionisation potential of $\mathrm{Mg}$
2 the second ionisation potential of $\mathrm{Mg}$ is greater than the second ionisation potential of $\mathrm{Na}$
3 The first ionisation potential of $\mathrm{Na}$ is less than the first ionisation potential of $\mathrm{Mg}$
4 the third ionisation potential of $\mathrm{Mg}$ is greater than the third ionisation potential of $\mathrm{Al}$
Explanation:
The second ionisation potential of $\mathrm{Mg}$ is less than the second ionisation potential of $\mathrm{Na}$. $\mathrm{Na}=\mathrm{IE}_2=4560 \mathrm{~kJ} / \mathrm{mol}$ $\mathrm{Mg}=\mathrm{I} . \mathrm{E}_2=1450 \mathrm{~kJ} / \mathrm{mol}$ Hence the option (b) is correct.
IIT JEE
Classification of Elements and Periodicity in Properties
89695
The incorrect statement among the following is 6. Electron Affinity
1 the first ionisation potential of $\mathrm{Al}$ is less than the first ionisation potential of $\mathrm{Mg}$
2 the second ionisation potential of $\mathrm{Mg}$ is greater than the second ionisation potential of $\mathrm{Na}$
3 The first ionisation potential of $\mathrm{Na}$ is less than the first ionisation potential of $\mathrm{Mg}$
4 the third ionisation potential of $\mathrm{Mg}$ is greater than the third ionisation potential of $\mathrm{Al}$
Explanation:
The second ionisation potential of $\mathrm{Mg}$ is less than the second ionisation potential of $\mathrm{Na}$. $\mathrm{Na}=\mathrm{IE}_2=4560 \mathrm{~kJ} / \mathrm{mol}$ $\mathrm{Mg}=\mathrm{I} . \mathrm{E}_2=1450 \mathrm{~kJ} / \mathrm{mol}$ Hence the option (b) is correct.
IIT JEE
Classification of Elements and Periodicity in Properties
89630
Which of the following elements has highest ionisation potential?
1 $\mathrm{B}$
2 $\mathrm{C}$
3 $\mathrm{N}$
4 $\mathrm{O}$
Explanation:
Amount of energy required to remove an $\mathrm{e}^{-}$ from the valence shell called ionisation energy. Nitrogen has greater ionization energy than oxygen because nitrogen has half filled stable configuration than the other element so removal of electron required the more energy hence highest ionisation potential.
MPPET - 2012
Classification of Elements and Periodicity in Properties
89631
The atomic number of the element with highest ionization energy among the following is
1 $\mathrm{Z}=16$
2 $Z=14$
3 $Z=13$
4 $Z=15$
Explanation:
For element with $\mathrm{Z}=15$, electronic configuration is $1 \mathrm{~s}^2 2 \mathrm{~s}^2 2 \mathrm{p}^6 3 \mathrm{~s}^2 3 \mathrm{p}_{\mathrm{x}}^1 3 \mathrm{p}_{\mathrm{y}}^1 3 \mathrm{p}_z^1$. Due to exactly half filled configuration of $3 \mathrm{p}$ orbital, the element will have the highest ionization energy.
Classification of Elements and Periodicity in Properties
89678
Which of the following has the highest first IP?
1 $\mathrm{Al}$
2 $\mathrm{Si}$
3 $\mathrm{K}$
4 $\mathrm{P}$
Explanation:
The amount of energy required to remove electron from an isolated atom or molecule. Phosphorus has highest first ionisation potential due to half filled orbitals. It has stable configuration than other. Electronic configuration of phosphorus. $$ \mathrm{P}=1 \mathrm{~s}^2 2 \mathrm{~s}^2 2 \mathrm{p}^6 3 \mathrm{~s}^2 3 \mathrm{p}^3 $$
A.P.EAMCET 2000
Classification of Elements and Periodicity in Properties
89694
The incorrect statement among the following is 6. Electron Affinity
1 the first ionisation potential of $\mathrm{Al}$ is less than the first ionisation potential of $\mathrm{Mg}$
2 the second ionisation potential of $\mathrm{Mg}$ is greater than the second ionisation potential of $\mathrm{Na}$
3 The first ionisation potential of $\mathrm{Na}$ is less than the first ionisation potential of $\mathrm{Mg}$
4 the third ionisation potential of $\mathrm{Mg}$ is greater than the third ionisation potential of $\mathrm{Al}$
Explanation:
The second ionisation potential of $\mathrm{Mg}$ is less than the second ionisation potential of $\mathrm{Na}$. $\mathrm{Na}=\mathrm{IE}_2=4560 \mathrm{~kJ} / \mathrm{mol}$ $\mathrm{Mg}=\mathrm{I} . \mathrm{E}_2=1450 \mathrm{~kJ} / \mathrm{mol}$ Hence the option (b) is correct.
IIT JEE
Classification of Elements and Periodicity in Properties
89695
The incorrect statement among the following is 6. Electron Affinity
1 the first ionisation potential of $\mathrm{Al}$ is less than the first ionisation potential of $\mathrm{Mg}$
2 the second ionisation potential of $\mathrm{Mg}$ is greater than the second ionisation potential of $\mathrm{Na}$
3 The first ionisation potential of $\mathrm{Na}$ is less than the first ionisation potential of $\mathrm{Mg}$
4 the third ionisation potential of $\mathrm{Mg}$ is greater than the third ionisation potential of $\mathrm{Al}$
Explanation:
The second ionisation potential of $\mathrm{Mg}$ is less than the second ionisation potential of $\mathrm{Na}$. $\mathrm{Na}=\mathrm{IE}_2=4560 \mathrm{~kJ} / \mathrm{mol}$ $\mathrm{Mg}=\mathrm{I} . \mathrm{E}_2=1450 \mathrm{~kJ} / \mathrm{mol}$ Hence the option (b) is correct.
IIT JEE
Classification of Elements and Periodicity in Properties
89630
Which of the following elements has highest ionisation potential?
1 $\mathrm{B}$
2 $\mathrm{C}$
3 $\mathrm{N}$
4 $\mathrm{O}$
Explanation:
Amount of energy required to remove an $\mathrm{e}^{-}$ from the valence shell called ionisation energy. Nitrogen has greater ionization energy than oxygen because nitrogen has half filled stable configuration than the other element so removal of electron required the more energy hence highest ionisation potential.
MPPET - 2012
Classification of Elements and Periodicity in Properties
89631
The atomic number of the element with highest ionization energy among the following is
1 $\mathrm{Z}=16$
2 $Z=14$
3 $Z=13$
4 $Z=15$
Explanation:
For element with $\mathrm{Z}=15$, electronic configuration is $1 \mathrm{~s}^2 2 \mathrm{~s}^2 2 \mathrm{p}^6 3 \mathrm{~s}^2 3 \mathrm{p}_{\mathrm{x}}^1 3 \mathrm{p}_{\mathrm{y}}^1 3 \mathrm{p}_z^1$. Due to exactly half filled configuration of $3 \mathrm{p}$ orbital, the element will have the highest ionization energy.