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JAMB Chemistry 2010 Paper

Question : 8

Total: 49

The maximum number of electrons in the L shell of an atom is?

Solution:

Concept:

The maximum number of electrons in an energy shell is given by

2n^2

, where

n

is the principal quantum number (shell number).

Explanation:

The L shell corresponds to

n = 2

Substitute

n = 2

into the formula:

2(2)^2 = 2 \times 4 = 8

Thus, the L shell can hold a maximum of 8 electrons.

Answer:

B. 8

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