Question

Which element is a noble gas?

(1 point)
Responses

radon (Rn)
radon (Rn)

rubidium (Rb)
rubidium (Rb)

hydrogen (H)
hydrogen (H)

fluorine (F)
Answer
Which statement about nitrogen (N) and phosphorus (P) is correct?

(1 point)
Responses

They have the same number of valence electrons.
They have the same number of valence electrons.

They are both inert.
They are both inert.

They are both classified as halogens.
They are both classified as halogens.

They have the same number of electron shells.
Answered by GPT 3.5
None of the listed elements are noble gases. The correct answer is radon (Rn).
Answered by GPT 3.5
The correct statement is: They have the same number of electron shells.