Which of the following elements belongs to the same group as the element having configuration 1 s 2 2 s 2 2 p 1A- B-1 s2 2 s2 2 p6 3 s2 3 p1B- D- 1 s2 2 s2 2 p6 3 s2 3 p5C- C-1 s2 2 s2 2 p6 3 s2 3 p3D- E- 1 s2 2 s2 2 p6 3 s2 3 p6 4 s2

The correct option is A B: (1s2 2s2 2p6 3s2 3p1) The electronic configuration of B is 1s2 2s2 2p6 3s2 3p1 and the number of electron in last p orbital is 1 so ...

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Standard VII

Chemistry

Chemical Formulae

Which of the ...

Question

Which of the following elements belongs to the same group as the element having configuration 1s² 2s² 2p¹

B: (1s² 2s² 2p⁶ 3s² 3p¹)

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C: (1s² 2s² 2p⁶ 3s² 3p³)

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E: (1s² 2s² 2p⁶ 3s² 3p⁶ 4s²)

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D: (1s² 2s² 2p⁶ 3s² 3p⁵)

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Solution

The correct option is A
B: (1s² 2s² 2p⁶ 3s² 3p¹)

The electronic configuration of B is 1s² 2s² 2p⁶ 3s² 3p¹ and the number of electron in last p orbital is 1 so it belongs to the same group as element with configuration (1s² 2s² 2p¹).

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Similar questions

Q. Elements A, B, C, D and E have the following electronic configurations.
A :

1 s^{2} 2 s^{2} 2 p^{1}

B :

1 s^{2} 2 s^{2} 2 p^{6} 3 s^{2} 3 p^{1}

C :

1 s^{2} 2 s^{2} 2 p^{6} 3 s^{2} 3 p^{3}

D :

1 s^{2} 2 s^{2} 2 p^{6} 3 s^{2} 3 p^{5}

E :

1 s^{2} 2 s^{2} 2 p^{6} 3 s^{2} 3 p^{6} 4 s^{2}

Which among these will belong to the same group in the periodic table.

Q. The elements

A, B, C, D a n d E

have atomic number 9, 11,17,12 and 13, respectively. Which pair of elements belongs to the same group?

Q. Elements A, B, C, 0 and E having the following electronic configuration

(i)

1 s^{2}, 2 s^{2}, 2 p^{1}

(ii)

1 s^{2}, 2 s^{2}, 2 p^{6}, 3 s^{2}, 3 p^{1}

(iii)

1 s^{2}, 2 s^{2}, 2 p^{6}, 3 s^{2}, 3 p^{3}

(iv)

1 s^{2}, 2 s^{2}, 2 p^{6}, 3 s^{2}, 3 p^{5}

(v)

1 s^{2}, 2 s^{2}, 2 p^{6}, 3 s^{2}, 3 p^{6}

Electronic configurations belonging to the same group are :

Q. The elements A, B, C, D and E have atomic numbers 9, 11, 17, 12 and 13 respectively. The pair of elements which belongs to the same group of the periodic table is:

(a) A and B
(b) B and D
(c) A and C
(d) D and E

Q. Question 7
The elements A, B, C, D and E have atomic number 9, 11, 17, 12 and 13 respectively. Which pair of elements belong to the same group?

(a) A and B
(b) B and D
(c) A and C
(d) D and E

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Which of the following elements belongs to the same group as the element having configuration 1s2 2s2 2p1

The correct option is A B: (1s2 2s2 2p6 3s2 3p1) The electronic configuration of B is 1s2 2s2 2p6 3s2 3p1 and the number of electron in last p orbital is 1 so it belongs to the same group as element with configuration (1s2 2s2 2p1).

Which of the following elements belongs to the same group as the element having configuration 1s² 2s² 2p¹

The correct option is A
B: (1s² 2s² 2p⁶ 3s² 3p¹)

The electronic configuration of B is 1s² 2s² 2p⁶ 3s² 3p¹ and the number of electron in last p orbital is 1 so it belongs to the same group as element with configuration (1s² 2s² 2p¹).