Question

Solve it please it is urgent​

Answer 1

Explanation:

2). Lithium <Beryllium <Boron< Carbon< Nitrogen< Oxygen <Fluorine.

3). carbon(C),OXYGEN(O),BERYLLIUM(BE),LITHIUM(LI),NITOGEN(N).

4). the non-metals are present on the UPPER RIGHT side,

group 17: Astatine < Iodine < Bromine < Chlorine < Fluorine