What does the solid compound, k2so4, contain?

The solid compound contain atoms of potassium , sulfur and oxygen .

Explanation:

A molecule is group of two or more numbers of atoms. These atoms are can be of same types or of different of elements

The name of the given molecule is potassium sulfate.

The molecule of potassium sulfate contains atoms of potassium , sulfur and oxygen.

Number of potassium atom = 2

Number of sulfur atoms = 1

Number of oxygen atoms = 4

1. a)c-14 has two more protons

2. d)they have different numbers of protons, neutrons, and valence electrons; they are all gases at room temperature.

3. c) iron and nickel.