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Question

In the formula, 2n2 for finding the maximum number of electrons in an orbit, what does the 'n' represent?

A
Number of electrons in the atom
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B
The orbit's or shell's serial number
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C
Mass number of the element
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D
Atomic number of the element
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Solution

The correct option is B The orbit's or shell's serial number
According to Neil Bohr, the shells or orbits in which electrons are present in an atom are represented by K (n=1), L (n=2), M (n=3), N (n=4). The term, 'n' represent the orbit's number. For instance, n=1 represents the first orbit; n=2 represents the second orbit.

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