Question

how would a scientist identify an element as a noble gas? a. the scientist would show that the element is a nonmetal with 6 valence electrons. b. the scientist would show that the element is a nonmetal with 8 valence electrons. c. the scientist would show that the element is a metal with 6 valence electrons. d. the scientist would show that the element is a metal with 8 valence electrons.

Explanation:

Noble gases are non - metals with a full outer shell of electrons. Typically, they have 8 valence electrons (except helium which has 2). This full valence shell gives them high stability and low reactivity.

Answer:

C. The scientist would show that the element is a nonmetal with 8 valence electrons.