Question

bohr model of an atom x p=17n=18
a. How many electrons are there in the shell having highest energy?
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Answer 1

Explanation:

Each shell can contain only a fixed number of electrons: the first shell can hold up to two electrons, the second shell can hold up to eight (2 + 6) electrons, the third shell can hold up to 18 (2 + 6 + 10) and so on. The general formula is that the nth shell can in principle hold up to 2(n2) electrons.