Question

Which statement about the properties of some elements is correct?

A. All noble gases are unreactive
due to having eight electrons in their outer shells.

B. The Group VII element astatine, Atz, is expected to be a black solid at room temperature.

C. The reactivity of the elements in both Group I and Group VII increases down the group.

D. When aqueous chlorine is added to aqueous potassium bromide there is no change in
color.

Answer 1

Answer:

the right answer is A . hope this helps.

Answer 2

(a)

This is the correct answer. Please mark me as brainliest.