QBManager

CHXI03:CLASSIFICATION OF ELEMENTS AND PERIODICITY IN PROPERTIES

313023 The electronic configuration for Neodymium is :
[Atomic number for Neodymium is 60]

1

[Xe] 4 f^{4} 6 s^{2}

2

[Xe] 4 f^{6} 6 s^{2}

3

[Xe] 5 f^{7} 7 s^{2}

4

[Xe] 4 f^{14} 5 d^{1} 6 s^{2}

Explanation:

$_{60} {Nd}^{144} = [Xe] 4 f^{4} 6 s^{2}$ .

JEE - 2024

CHXI03:CLASSIFICATION OF ELEMENTS AND PERIODICITY IN PROPERTIES

313024 Assertion :
Chemistry of actinoids is more complicated than lanthanoids.
Reason :
Actinoid elements are radioactive.

1 Both Assertion and Reason are correct and Reason is the correct explanation of the Assertion.

2 Both Assertion and Reason are correct but Reason is not the correct explanation of the Assertion.

3 Assertion is correct but Reason is incorrect.

4 Assertion is incorrect but Reason is correct.

CHXI03:CLASSIFICATION OF ELEMENTS AND PERIODICITY IN PROPERTIES

313025 The elements in which electrons are progressively filled in 4f-orbital are called

1 Actinoids

2 Transition elements

3 Lanthanoids

4 Halogens

NCERT Exemplar

CHXI03:CLASSIFICATION OF ELEMENTS AND PERIODICITY IN PROPERTIES

313026 The f-block elements are called ‘inner transition elements’ because

1 They have properties similar to those of transition elements.

2 They are kept away from transition elements

3 The last electron enters the f-orbital of the penultimate shell

4 The last electron enters the f-orbital of the anti-penultimate shell.

CHXI03:CLASSIFICATION OF ELEMENTS AND PERIODICITY IN PROPERTIES

313023 The electronic configuration for Neodymium is :
[Atomic number for Neodymium is 60]

1

[Xe] 4 f^{4} 6 s^{2}

2

[Xe] 4 f^{6} 6 s^{2}

3

[Xe] 5 f^{7} 7 s^{2}

4

[Xe] 4 f^{14} 5 d^{1} 6 s^{2}

Explanation:

$_{60} {Nd}^{144} = [Xe] 4 f^{4} 6 s^{2}$ .

JEE - 2024

CHXI03:CLASSIFICATION OF ELEMENTS AND PERIODICITY IN PROPERTIES

313024 Assertion :
Chemistry of actinoids is more complicated than lanthanoids.
Reason :
Actinoid elements are radioactive.

1 Both Assertion and Reason are correct and Reason is the correct explanation of the Assertion.

2 Both Assertion and Reason are correct but Reason is not the correct explanation of the Assertion.

3 Assertion is correct but Reason is incorrect.

4 Assertion is incorrect but Reason is correct.

CHXI03:CLASSIFICATION OF ELEMENTS AND PERIODICITY IN PROPERTIES

313025 The elements in which electrons are progressively filled in 4f-orbital are called

1 Actinoids

2 Transition elements

3 Lanthanoids

4 Halogens

NCERT Exemplar

CHXI03:CLASSIFICATION OF ELEMENTS AND PERIODICITY IN PROPERTIES

313026 The f-block elements are called ‘inner transition elements’ because

1 They have properties similar to those of transition elements.

2 They are kept away from transition elements

3 The last electron enters the f-orbital of the penultimate shell

4 The last electron enters the f-orbital of the anti-penultimate shell.

CHXI03:CLASSIFICATION OF ELEMENTS AND PERIODICITY IN PROPERTIES

313023 The electronic configuration for Neodymium is :
[Atomic number for Neodymium is 60]

1

[Xe] 4 f^{4} 6 s^{2}

2

[Xe] 4 f^{6} 6 s^{2}

3

[Xe] 5 f^{7} 7 s^{2}

4

[Xe] 4 f^{14} 5 d^{1} 6 s^{2}

Explanation:

$_{60} {Nd}^{144} = [Xe] 4 f^{4} 6 s^{2}$ .

JEE - 2024

CHXI03:CLASSIFICATION OF ELEMENTS AND PERIODICITY IN PROPERTIES

313024 Assertion :
Chemistry of actinoids is more complicated than lanthanoids.
Reason :
Actinoid elements are radioactive.

1 Both Assertion and Reason are correct and Reason is the correct explanation of the Assertion.

2 Both Assertion and Reason are correct but Reason is not the correct explanation of the Assertion.

3 Assertion is correct but Reason is incorrect.

4 Assertion is incorrect but Reason is correct.

CHXI03:CLASSIFICATION OF ELEMENTS AND PERIODICITY IN PROPERTIES

313025 The elements in which electrons are progressively filled in 4f-orbital are called

1 Actinoids

2 Transition elements

3 Lanthanoids

4 Halogens

NCERT Exemplar

CHXI03:CLASSIFICATION OF ELEMENTS AND PERIODICITY IN PROPERTIES

313026 The f-block elements are called ‘inner transition elements’ because

1 They have properties similar to those of transition elements.

2 They are kept away from transition elements

3 The last electron enters the f-orbital of the penultimate shell

4 The last electron enters the f-orbital of the anti-penultimate shell.

CHXI03:CLASSIFICATION OF ELEMENTS AND PERIODICITY IN PROPERTIES

313023 The electronic configuration for Neodymium is :
[Atomic number for Neodymium is 60]

1

[Xe] 4 f^{4} 6 s^{2}

2

[Xe] 4 f^{6} 6 s^{2}

3

[Xe] 5 f^{7} 7 s^{2}

4

[Xe] 4 f^{14} 5 d^{1} 6 s^{2}

Explanation:

$_{60} {Nd}^{144} = [Xe] 4 f^{4} 6 s^{2}$ .

JEE - 2024

CHXI03:CLASSIFICATION OF ELEMENTS AND PERIODICITY IN PROPERTIES

313024 Assertion :
Chemistry of actinoids is more complicated than lanthanoids.
Reason :
Actinoid elements are radioactive.

1 Both Assertion and Reason are correct and Reason is the correct explanation of the Assertion.

2 Both Assertion and Reason are correct but Reason is not the correct explanation of the Assertion.

3 Assertion is correct but Reason is incorrect.

4 Assertion is incorrect but Reason is correct.

CHXI03:CLASSIFICATION OF ELEMENTS AND PERIODICITY IN PROPERTIES

313025 The elements in which electrons are progressively filled in 4f-orbital are called

1 Actinoids

2 Transition elements

3 Lanthanoids

4 Halogens

NCERT Exemplar

CHXI03:CLASSIFICATION OF ELEMENTS AND PERIODICITY IN PROPERTIES

313026 The f-block elements are called ‘inner transition elements’ because

1 They have properties similar to those of transition elements.

2 They are kept away from transition elements

3 The last electron enters the f-orbital of the penultimate shell

4 The last electron enters the f-orbital of the anti-penultimate shell.