answer the following with reference to the peeriodic table of the elements Li to Ne..?

Question

1.A solid non metallic element that is trivalent in its compounds
2.A solid non metal element that is tetravalent in its compounds
3.A solid metallic element that is monovalent n all its compounds
4.A gaseous element that is monovalent in all its compounds

Answer 1

1. B
2. C
3. Li
4. F

Answer 2

1 Boron
2 Carbon
3 Lithium
4 Fluor