Which of the following statements is true based on an element with 7 valence electrons? If you would like to view the Reference Material, click here.

The element is a stable metal.

The element is a reactive nonmetal.

The element is a stable nonmetal.

The element is a reactive metal.

What is the mass of phosphorous in a 51-kg person

You just calculated that the heat of fusion for chloromethane is 6400 j/mol. the heat of fusion for hydrogen is 120 j/mol.? which of the following account for this difference? more than one correcta. chloromethane can absorb more energy at the same temperature. b. hydrogen has stronger intermolecular forces than chloromethane. c. hydrogen molecules can pack more closely than chloromethane molecules. d. chloromethane experiences dipole-dipole interactions. e. chloromethane has a higher molar mass than hydrogen.

Avogradoa number was calculated by determining the number of atoms in?