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CHXI03:CLASSIFICATION OF ELEMENTS AND PERIODICITY IN PROPERTIES

313027 Electronic configuration of only one p-block element is exceptional. One molecule of that element consists of how many atoms of it?

1 One

2 Two

3 Three

4 Four

MHTCET - 2020

CHXI03:CLASSIFICATION OF ELEMENTS AND PERIODICITY IN PROPERTIES

313028 Which element from the following belongs to oxygen family?

1

Ba

2

Se

3

Rb

4

Ca

Explanation:

Oxygen family (Gr. 16 elements) are $O, S, Se, Te, Po, Lv$ . So, 'Se' is the answer $Ba, Ca$ - belong to group-2
Rb-belongs to group-1.

MHTCET - 2021

CHXI03:CLASSIFICATION OF ELEMENTS AND PERIODICITY IN PROPERTIES

313008 Match Column I with Column II and choose the correct combination from the options given.
Column I
Column II
supporting img

1

A - R, S, B - Q, T C - P, D - R

2

A - P, R, B - P, Q, R, C - P, S, D - T

3

A - Q, T B - P, C - R, D - R, S

4

A - T, B - P, R, C - P, S, D - P, Q, R

Explanation:

(A - R, S)
$[Xe] 4 f^{14} 5 d^{2} 6 s^{2}$ : Last $e^{-}$ enters to 5d subshell so it is d- block element and 5 d subshell is partially filled, so it is also considered transition element.
(B - Q, T)
[Xe] $4 f^{14} 5 d^{10} 6 s^{2} 6 p^{6} 7 s^{2}$ : Last $e^{-}$ enters in 7 s subshell, so it is s-block and representative element.
(C - P)
$[Rn] 5 f^{14} 6 d^{1} 7 s^{2}$ : Last $e^{-}$ enters to 5 f subshell so it is f-block and inner-transition element.
(D - R)
[Xe] $4 f^{14} 5 d^{10} 6 s^{2}$ : Last $e^{-}$ enters to 5 d subshell so it is d -block element and 5d sub-shell is full filled so it is not considered as transition element.

CHXI03:CLASSIFICATION OF ELEMENTS AND PERIODICITY IN PROPERTIES

313009 Which of the following is the wrong statement?

1 All the actinide elements are radioactive.

2 Alkali and alkaline earth metals are s-block elements.

3 Chalcogens and halogens are p-block elements.

4 The first member of the lanthanide series is lanthanum.

CHXI03:CLASSIFICATION OF ELEMENTS AND PERIODICITY IN PROPERTIES

313027 Electronic configuration of only one p-block element is exceptional. One molecule of that element consists of how many atoms of it?

1 One

2 Two

3 Three

4 Four

MHTCET - 2020

CHXI03:CLASSIFICATION OF ELEMENTS AND PERIODICITY IN PROPERTIES

313028 Which element from the following belongs to oxygen family?

1

Ba

2

Se

3

Rb

4

Ca

Explanation:

Oxygen family (Gr. 16 elements) are $O, S, Se, Te, Po, Lv$ . So, 'Se' is the answer $Ba, Ca$ - belong to group-2
Rb-belongs to group-1.

MHTCET - 2021

CHXI03:CLASSIFICATION OF ELEMENTS AND PERIODICITY IN PROPERTIES

313008 Match Column I with Column II and choose the correct combination from the options given.
Column I
Column II
supporting img

1

A - R, S, B - Q, T C - P, D - R

2

A - P, R, B - P, Q, R, C - P, S, D - T

3

A - Q, T B - P, C - R, D - R, S

4

A - T, B - P, R, C - P, S, D - P, Q, R

Explanation:

(A - R, S)
$[Xe] 4 f^{14} 5 d^{2} 6 s^{2}$ : Last $e^{-}$ enters to 5d subshell so it is d- block element and 5 d subshell is partially filled, so it is also considered transition element.
(B - Q, T)
[Xe] $4 f^{14} 5 d^{10} 6 s^{2} 6 p^{6} 7 s^{2}$ : Last $e^{-}$ enters in 7 s subshell, so it is s-block and representative element.
(C - P)
$[Rn] 5 f^{14} 6 d^{1} 7 s^{2}$ : Last $e^{-}$ enters to 5 f subshell so it is f-block and inner-transition element.
(D - R)
[Xe] $4 f^{14} 5 d^{10} 6 s^{2}$ : Last $e^{-}$ enters to 5 d subshell so it is d -block element and 5d sub-shell is full filled so it is not considered as transition element.

CHXI03:CLASSIFICATION OF ELEMENTS AND PERIODICITY IN PROPERTIES

313009 Which of the following is the wrong statement?

1 All the actinide elements are radioactive.

2 Alkali and alkaline earth metals are s-block elements.

3 Chalcogens and halogens are p-block elements.

4 The first member of the lanthanide series is lanthanum.

CHXI03:CLASSIFICATION OF ELEMENTS AND PERIODICITY IN PROPERTIES

313027 Electronic configuration of only one p-block element is exceptional. One molecule of that element consists of how many atoms of it?

1 One

2 Two

3 Three

4 Four

MHTCET - 2020

CHXI03:CLASSIFICATION OF ELEMENTS AND PERIODICITY IN PROPERTIES

313028 Which element from the following belongs to oxygen family?

1

Ba

2

Se

3

Rb

4

Ca

Explanation:

Oxygen family (Gr. 16 elements) are $O, S, Se, Te, Po, Lv$ . So, 'Se' is the answer $Ba, Ca$ - belong to group-2
Rb-belongs to group-1.

MHTCET - 2021

CHXI03:CLASSIFICATION OF ELEMENTS AND PERIODICITY IN PROPERTIES

313008 Match Column I with Column II and choose the correct combination from the options given.
Column I
Column II
supporting img

1

A - R, S, B - Q, T C - P, D - R

2

A - P, R, B - P, Q, R, C - P, S, D - T

3

A - Q, T B - P, C - R, D - R, S

4

A - T, B - P, R, C - P, S, D - P, Q, R

Explanation:

(A - R, S)
$[Xe] 4 f^{14} 5 d^{2} 6 s^{2}$ : Last $e^{-}$ enters to 5d subshell so it is d- block element and 5 d subshell is partially filled, so it is also considered transition element.
(B - Q, T)
[Xe] $4 f^{14} 5 d^{10} 6 s^{2} 6 p^{6} 7 s^{2}$ : Last $e^{-}$ enters in 7 s subshell, so it is s-block and representative element.
(C - P)
$[Rn] 5 f^{14} 6 d^{1} 7 s^{2}$ : Last $e^{-}$ enters to 5 f subshell so it is f-block and inner-transition element.
(D - R)
[Xe] $4 f^{14} 5 d^{10} 6 s^{2}$ : Last $e^{-}$ enters to 5 d subshell so it is d -block element and 5d sub-shell is full filled so it is not considered as transition element.

CHXI03:CLASSIFICATION OF ELEMENTS AND PERIODICITY IN PROPERTIES

313009 Which of the following is the wrong statement?

1 All the actinide elements are radioactive.

2 Alkali and alkaline earth metals are s-block elements.

3 Chalcogens and halogens are p-block elements.

4 The first member of the lanthanide series is lanthanum.

CHXI03:CLASSIFICATION OF ELEMENTS AND PERIODICITY IN PROPERTIES

313027 Electronic configuration of only one p-block element is exceptional. One molecule of that element consists of how many atoms of it?

1 One

2 Two

3 Three

4 Four

MHTCET - 2020

CHXI03:CLASSIFICATION OF ELEMENTS AND PERIODICITY IN PROPERTIES

313028 Which element from the following belongs to oxygen family?

1

Ba

2

Se

3

Rb

4

Ca

Explanation:

Oxygen family (Gr. 16 elements) are $O, S, Se, Te, Po, Lv$ . So, 'Se' is the answer $Ba, Ca$ - belong to group-2
Rb-belongs to group-1.

MHTCET - 2021

CHXI03:CLASSIFICATION OF ELEMENTS AND PERIODICITY IN PROPERTIES

313008 Match Column I with Column II and choose the correct combination from the options given.
Column I
Column II
supporting img

1

A - R, S, B - Q, T C - P, D - R

2

A - P, R, B - P, Q, R, C - P, S, D - T

3

A - Q, T B - P, C - R, D - R, S

4

A - T, B - P, R, C - P, S, D - P, Q, R

Explanation:

(A - R, S)
$[Xe] 4 f^{14} 5 d^{2} 6 s^{2}$ : Last $e^{-}$ enters to 5d subshell so it is d- block element and 5 d subshell is partially filled, so it is also considered transition element.
(B - Q, T)
[Xe] $4 f^{14} 5 d^{10} 6 s^{2} 6 p^{6} 7 s^{2}$ : Last $e^{-}$ enters in 7 s subshell, so it is s-block and representative element.
(C - P)
$[Rn] 5 f^{14} 6 d^{1} 7 s^{2}$ : Last $e^{-}$ enters to 5 f subshell so it is f-block and inner-transition element.
(D - R)
[Xe] $4 f^{14} 5 d^{10} 6 s^{2}$ : Last $e^{-}$ enters to 5 d subshell so it is d -block element and 5d sub-shell is full filled so it is not considered as transition element.

CHXI03:CLASSIFICATION OF ELEMENTS AND PERIODICITY IN PROPERTIES

313009 Which of the following is the wrong statement?

1 All the actinide elements are radioactive.

2 Alkali and alkaline earth metals are s-block elements.

3 Chalcogens and halogens are p-block elements.

4 The first member of the lanthanide series is lanthanum.

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