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Question

In the formula, 2n2 for finding the maximum number of electrons in an orbit, n represents ____.


A

the number of electrons

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B

the orbit's or shell's serial number

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C

the mass number

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D

the atomic number

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Solution

The correct option is B

the orbit's or shell's serial number


According to Niel 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' represents the orbit's number. For instance, n=1 represents the first orbit; n=2 represents the second orbit.


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