Can anyone me finish my edgen physics class?

Which of the following are considered noble gases? a. bromine b. neon c. argon d. chlorine

When electrons are added to the outermost shell of a carbon atom, it forms--an anion that has a larger anion that has a smaller cation that has a larger cation that has a smaller radius.

Aa a of 22 m/s at an of 36.9 .be . a. b. c. (3)x y of? (3)go? (4) () it to to ?