1. a cube has a mass of 40 grams. one side of the cube has a length of 3.4. what is the density of the cube?

1.0177 g/cm³

We are given;

We are required to get the density of the cube;

Thus, Volume of the cube = 3.4 cm × 3.4 cm × 3.4 cm

                                 = 39.304 cm³

But, density = Mass ÷ volume

                    = 40 g ÷ 39.304 cm³

                    = 1.0177 g/cm³

Therefore, the density of the cube is 1.0177 g/cm³

if two electrons have the same n, the same ℓ, and the same ml, then they are in the same orbital. the pauli exclusion principle states that no two identical fermions (a fancy word for electrons and other subatomic particles like electrons) may occupy the same quantum state in an atom simultaneously.