Explain how a rotating electric fan might be used to model the atom. explain how the rotating fan is unlike an atom.

If the atomic mass of an atom is 34 and the atom contains 13 protons, how many neutrons does the atom contain?

Newtons second law deals most cosely with

The human eye contains a molecule called 11-cis-retinal that changes shape when struck with light of sufficient energy. the change in shape triggers a series of events that results in an electrical signal being sent to the brain that results in vision. the minimum energy required to change the conformation of 11-cis-retinal within the eye is about 164 kj/mol.