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If elements with principal quantum number n > 4 were not allowed in nature, then what will be the number of possible elements?

If elements with principal quantum number n > 4 were not allowed in nature, then what will be the number of possible elements? Correct Answer 60

Maximum number of electrons in an orbit = 2n2. As n > 4 is not allowed, the number of possible elements = 2(1)2 + 2(2)2 + 2(3)2 Number of possible elements = 2(4)2 Number of possible elements = 60.

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