Question

which is the noble gas notation for chlorine?
ne 4s²4p⁵
ne 3s²3p⁵
ne 3s²3p³
ne 3p²3p⁶

Explanation:

Chlorine has 17 electrons. Neon (\(Ne\)) is the noble - gas with 10 electrons. After using the 10 electrons of neon in the noble - gas notation, we need to account for the remaining 7 electrons. The electron configuration of the remaining electrons is \(3s^{2}3p^{5}\).

Answer:

[Ne] \(3s^{2}3p^{5}\) (the second option)