What is the wavelength of light with 2.89 x 10^-19 j of energy? (the speed of light in a vacuum is 3.00 x 10^8 m/s, and planck's constant is 6.626 x 10^-34 j s)

Select all of the statements which are true. electrons are located in shells or orbits around the atom. electrons orbit slowly around the atom. electrons travel in one flat path around the nucleus of an atom. the valence of an atom is determined by the number of electrons in the atom's outermost shell.

Which type of intermolecular force is pbr3

If an atom has 12 protons and 13 neutrons