Answer to Question #330664 in General Chemistry for Moma Bear

Question

A new element has been discovered and all you know is that it is a noble gas Predict the number of electrons in its outer orbit and possible atomic number(s)

Answer 1

The atoms of the noble gases have full outer shells of electrons. Helium atoms have two electrons in their outer shell and the atoms of the other noble gases have eight electrons in their outer shells.

This means that the new element has eight electrons in its outer orbit. Noble gases make up group 18 and one possible atomic number for the new element is 118.