Question

If a shell has 18 electrons,then n, the number of the shell is ----​

Answer 1

Answer:

If a shell has 18 electrons,then n, the number of the shell is 3

Answer 2

Explanation:

The general formula is that the nth shell can in principle hold up to 2(n2) electrons. For an explanation of why electrons exist in these shells see electron configuration. Each shell consists of one or more subshells, and each subshell consists of one or more atomic orbitals.The 3rd subshell consists of an s orbital , a set of (3)p orbitals and a set of (5)d orbitals. Each orbital holds 2 electrons and you will indeed find that you can fir 18 electrons in. ... This is because it is the maximum capacity of the 3rd shell and it doesn't tell about the order in which the electrons are filled.

So, n = 3

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