If element with particle quantum number `ngt4` were not allowed in nature , the number of possible element would beA. 60B. 32C. 4D. 64

If element with particle quantum number `ngt4` were not allowed in nat

1.	If element with particle quantum number `ngt4` were not allowed in nature , the number of possible element would beA. 60B. 32C. 4D. 64
Answer» Correct Answer - D The maximum number of electron in an orbit is `2 n^(2)`. Since `n gt4` is not possible , therefore the maximum number of electron that can be in the first four orbit are `2 (1)^(2) + 2 (2)^(2) + 2 (3)^(2) + 2 (4) = 2 + 8 + 18 + 32 = 60` Therefore, possible element are`60`

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