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Aufbau Principle

Maximum numbe...

Question

Maximum number of electrons that can be filled in the third orbit of an atom is :

A

18

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B

8

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C

10

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D

32

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Solution

The correct option is B $18$
Maximum number of electrons = $2 n^{2}$ where n= 3, thus maximum number of electrons that can be filled in third orbit = $2 \times 3^{2}$ = 18.

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Similar questions

Q. The maximum number of electrons that can be filled in an orbit (shell) can be found by using the formula

2 n^{2}

; where ‘n’ stands for an orbit’s serial number. Calculate the maximum number of electrons that can be accommodated in the

2^{n d}

orbit (shell) of an atom.

Q. Predict the possible atomic number(s) of an atom in which the third shell is incompletely filled and maximum 3 more electrons can be added in that shell?

Q. Assertion: K, L, M, N orbits can accommodate maximum of 2, 8, 18, 32 electrons respectively.

Reason: The maximum number of electrons in particular orbit is given by

2 n^{2}

n

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Q. The maximum number of electrons that can be filled in

σ^{*} 3 p_{z}

Q. Choose the incorrect statement(s) among the following.
1. The maximum number of electrons present in L and N shells are 8 and 18 respectively,
2. The maximum number of electrons that can be accommodated in the outermost orbit is 8.
3. Shells are filled in a step-wise manner

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