Question

The noble gases, or group 18, on the periodic table are known to be unreactive. Which of the following reason best describes why this family is so inert?

Their outer shells are full, they can't hold any more electrons.

Their outer shells need one electron to be full.

Their outer shells have 2 electrons.

Their outer shells have 1 electron.

Answer 1

Their outer shells are full, they can't hold any more electrons.