QBManager

Classification of Elements and Periodicity in Properties

89678 Which of the following has the highest first IP?

1

Al

2

Si

3

K

4

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.
$P = 1 s^{2} 2 s^{2} 2 p^{6} 3 s^{2} 3 p^{3}$

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

Al

is less than the first ionisation potential of

Mg

2 the second ionisation potential of

Mg

is greater than the second ionisation potential of

Na

3 The first ionisation potential of

Na

is less than the first ionisation potential of

Mg

4 the third ionisation potential of

Mg

is greater than the third ionisation potential of

Al

Explanation:

The second ionisation potential of $Mg$ is less than the second ionisation potential of $Na$ .
$Na = {IE}_{2} = 4560 kJ / mol$
$Mg = I . E_{2} = 1450 kJ / mol$
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

Al

is less than the first ionisation potential of

Mg

2 the second ionisation potential of

Mg

is greater than the second ionisation potential of

Na

3 The first ionisation potential of

Na

is less than the first ionisation potential of

Mg

4 the third ionisation potential of

Mg

is greater than the third ionisation potential of

Al

Explanation:

The second ionisation potential of $Mg$ is less than the second ionisation potential of $Na$ .
$Na = {IE}_{2} = 4560 kJ / mol$
$Mg = I . E_{2} = 1450 kJ / mol$
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

B

2

C

3

N

4

O

Explanation:

Amount of energy required to remove an $e^{-}$ 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

Z = 16

2

Z = 14

3

Z = 13

4

Z = 15

Explanation:

For element with $Z = 15$ , electronic configuration is $1 s^{2} 2 s^{2} 2 p^{6} 3 s^{2} 3 p_{x}^{1} 3 p_{y}^{1} 3 p_{z}^{1}$ .
Due to exactly half filled configuration of $3 p$ orbital, the element will have the highest ionization energy.

COMEDK 2012

Classification of Elements and Periodicity in Properties

89678 Which of the following has the highest first IP?

1

Al

2

Si

3

K

4

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.
$P = 1 s^{2} 2 s^{2} 2 p^{6} 3 s^{2} 3 p^{3}$

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

Al

is less than the first ionisation potential of

Mg

2 the second ionisation potential of

Mg

is greater than the second ionisation potential of

Na

3 The first ionisation potential of

Na

is less than the first ionisation potential of

Mg

4 the third ionisation potential of

Mg

is greater than the third ionisation potential of

Al

Explanation:

The second ionisation potential of $Mg$ is less than the second ionisation potential of $Na$ .
$Na = {IE}_{2} = 4560 kJ / mol$
$Mg = I . E_{2} = 1450 kJ / mol$
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

Al

is less than the first ionisation potential of

Mg

2 the second ionisation potential of

Mg

is greater than the second ionisation potential of

Na

3 The first ionisation potential of

Na

is less than the first ionisation potential of

Mg

4 the third ionisation potential of

Mg

is greater than the third ionisation potential of

Al

Explanation:

The second ionisation potential of $Mg$ is less than the second ionisation potential of $Na$ .
$Na = {IE}_{2} = 4560 kJ / mol$
$Mg = I . E_{2} = 1450 kJ / mol$
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

B

2

C

3

N

4

O

Explanation:

Amount of energy required to remove an $e^{-}$ 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

Z = 16

2

Z = 14

3

Z = 13

4

Z = 15

Explanation:

For element with $Z = 15$ , electronic configuration is $1 s^{2} 2 s^{2} 2 p^{6} 3 s^{2} 3 p_{x}^{1} 3 p_{y}^{1} 3 p_{z}^{1}$ .
Due to exactly half filled configuration of $3 p$ orbital, the element will have the highest ionization energy.

COMEDK 2012

Classification of Elements and Periodicity in Properties

89678 Which of the following has the highest first IP?

1

Al

2

Si

3

K

4

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.
$P = 1 s^{2} 2 s^{2} 2 p^{6} 3 s^{2} 3 p^{3}$

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

Al

is less than the first ionisation potential of

Mg

2 the second ionisation potential of

Mg

is greater than the second ionisation potential of

Na

3 The first ionisation potential of

Na

is less than the first ionisation potential of

Mg

4 the third ionisation potential of

Mg

is greater than the third ionisation potential of

Al

Explanation:

The second ionisation potential of $Mg$ is less than the second ionisation potential of $Na$ .
$Na = {IE}_{2} = 4560 kJ / mol$
$Mg = I . E_{2} = 1450 kJ / mol$
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

Al

is less than the first ionisation potential of

Mg

2 the second ionisation potential of

Mg

is greater than the second ionisation potential of

Na

3 The first ionisation potential of

Na

is less than the first ionisation potential of

Mg

4 the third ionisation potential of

Mg

is greater than the third ionisation potential of

Al

Explanation:

The second ionisation potential of $Mg$ is less than the second ionisation potential of $Na$ .
$Na = {IE}_{2} = 4560 kJ / mol$
$Mg = I . E_{2} = 1450 kJ / mol$
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

B

2

C

3

N

4

O

Explanation:

Amount of energy required to remove an $e^{-}$ 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

Z = 16

2

Z = 14

3

Z = 13

4

Z = 15

Explanation:

For element with $Z = 15$ , electronic configuration is $1 s^{2} 2 s^{2} 2 p^{6} 3 s^{2} 3 p_{x}^{1} 3 p_{y}^{1} 3 p_{z}^{1}$ .
Due to exactly half filled configuration of $3 p$ orbital, the element will have the highest ionization energy.

COMEDK 2012

Classification of Elements and Periodicity in Properties

89678 Which of the following has the highest first IP?

1

Al

2

Si

3

K

4

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.
$P = 1 s^{2} 2 s^{2} 2 p^{6} 3 s^{2} 3 p^{3}$

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

Al

is less than the first ionisation potential of

Mg

2 the second ionisation potential of

Mg

is greater than the second ionisation potential of

Na

3 The first ionisation potential of

Na

is less than the first ionisation potential of

Mg

4 the third ionisation potential of

Mg

is greater than the third ionisation potential of

Al

Explanation:

The second ionisation potential of $Mg$ is less than the second ionisation potential of $Na$ .
$Na = {IE}_{2} = 4560 kJ / mol$
$Mg = I . E_{2} = 1450 kJ / mol$
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

Al

is less than the first ionisation potential of

Mg

2 the second ionisation potential of

Mg

is greater than the second ionisation potential of

Na

3 The first ionisation potential of

Na

is less than the first ionisation potential of

Mg

4 the third ionisation potential of

Mg

is greater than the third ionisation potential of

Al

Explanation:

The second ionisation potential of $Mg$ is less than the second ionisation potential of $Na$ .
$Na = {IE}_{2} = 4560 kJ / mol$
$Mg = I . E_{2} = 1450 kJ / mol$
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

B

2

C

3

N

4

O

Explanation:

Amount of energy required to remove an $e^{-}$ 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

Z = 16

2

Z = 14

3

Z = 13

4

Z = 15

Explanation:

For element with $Z = 15$ , electronic configuration is $1 s^{2} 2 s^{2} 2 p^{6} 3 s^{2} 3 p_{x}^{1} 3 p_{y}^{1} 3 p_{z}^{1}$ .
Due to exactly half filled configuration of $3 p$ orbital, the element will have the highest ionization energy.

COMEDK 2012

Classification of Elements and Periodicity in Properties

89678 Which of the following has the highest first IP?

1

Al

2

Si

3

K

4

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.
$P = 1 s^{2} 2 s^{2} 2 p^{6} 3 s^{2} 3 p^{3}$

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

Al

is less than the first ionisation potential of

Mg

2 the second ionisation potential of

Mg

is greater than the second ionisation potential of

Na

3 The first ionisation potential of

Na

is less than the first ionisation potential of

Mg

4 the third ionisation potential of

Mg

is greater than the third ionisation potential of

Al

Explanation:

The second ionisation potential of $Mg$ is less than the second ionisation potential of $Na$ .
$Na = {IE}_{2} = 4560 kJ / mol$
$Mg = I . E_{2} = 1450 kJ / mol$
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

Al

is less than the first ionisation potential of

Mg

2 the second ionisation potential of

Mg

is greater than the second ionisation potential of

Na

3 The first ionisation potential of

Na

is less than the first ionisation potential of

Mg

4 the third ionisation potential of

Mg

is greater than the third ionisation potential of

Al

Explanation:

The second ionisation potential of $Mg$ is less than the second ionisation potential of $Na$ .
$Na = {IE}_{2} = 4560 kJ / mol$
$Mg = I . E_{2} = 1450 kJ / mol$
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

B

2

C

3

N

4

O

Explanation:

Amount of energy required to remove an $e^{-}$ 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

Z = 16

2

Z = 14

3

Z = 13

4

Z = 15

Explanation:

For element with $Z = 15$ , electronic configuration is $1 s^{2} 2 s^{2} 2 p^{6} 3 s^{2} 3 p_{x}^{1} 3 p_{y}^{1} 3 p_{z}^{1}$ .
Due to exactly half filled configuration of $3 p$ orbital, the element will have the highest ionization energy.

COMEDK 2012

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