Which statement about electrons and atomic orbitals is not true? An electron has the same amount of energy in all orbitals.
An orbital can contain a maximum of two electrons.
An atom's lowest energy level has only one orbital.
An electron cloud represents all the orbitals in an atom.

Which statement is true? a. kepler's laws apply only to the motion of earth. b. kepler's laws can be used to predict eclipses. c. kepler's laws are true for a central force that is directly proportional to distance. d. kepler's laws can be deduced from newton's laws of motion and gravity.

Which subatomic particle has a negative charge

Which scientist was the first to propose the heliocentric model of the universe? a. aristotle b. isaac newton c. galileo galilei d. nicolaus copernicus