The quantum theory of energy levels within atoms was aided by: study of the sun's light spectrum
emission line spectra of various elements
alpha particles
gamma rays

How manyatoms of mercury are in 1.4214e+1 ml sample

Consider the story you just read. all but one of the choices below indicate that something is living.

The diagrams to the right show the distribution and arrangement of gas particles in two different containers. according to kinetic-molecular theory, which of the following statements is true? check all that apply. if the temperatures of both containers are equal, container a has greater pressure than container b. if the volume of container a decreased, its pressure would decrease. if the pressure in both containers is equal, container a has a lower temperature than container b.