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Q.

The total number of electrons present in all the 's' orbitals, all the 'p' ortitals and all the 'd' orbitals of cesium ion are respectively

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a

8, 22, 24

b

8, 26, 10

c

10, 24, 20

d

12, 20, 22

answer is B.

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Detailed Solution

detailed_solution_thumbnail

Atomic number of Caesium- 55

Electronic configuration of Caesium- 1s22s22p63s23p63d104s24p64d105s25p66s1

Electronic configuration of Caesium ion- 1s22s22p63s23p63d104s24p64d105s25p6
Electrons in s orbitals- 10

Electrons in p orbitals- 24

Electrons in d orbitals- 20

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