Which of the following is characterized by existing at a discrete energy level?

spin number

subatomic particle

orbital

atomic number

Agas can holds 2.0 gal of gasoline. what is this quantity in cubic centimeters?

According to the vsepr theory what is the shape of a molecule that has a central atom valence three other items with no lone pairs of electrons

Which theory was contradicted by experiments with the photoelectric effect? light spreads out after it passes through a small opening. as soon as light strikes metal, electrons will be ejected. visible light, regardless of color, will cause the ejection of electrons when striking metal. the kinetic energy of ejected electrons depends on the frequency of light that strikes the metal.