Question

3 multiple choice 20 points least likely to conduct heat and electricity. nonmetal cant be determined. metalloid metal 4 multiple answer 20 points select all the elements that are classified as a nonmetal. k f br b h al

Explanation:

For question 3: Metals are good conductors of heat and electricity. Metalloids have intermediate conductivity. Non - metals are generally poor conductors. So nonmetal is the answer.
For question 4: K (Potassium) is a metal. F (Fluorine) is a non - metal. Br (Bromine) is a non - metal. B (Boron) is a metalloid. H (Hydrogen) is a non - metal (in some cases, but its classification can be a bit complex, but in the context of non - metal selection, it is often considered). Al (Aluminium) is a metal.

Answer:

1. nonmetal
2. F, Br, H