I'm pretty sure all 4 are subatomic particles but if i had to guess i'd be Photons
Answer:
The laws are: (1) Every object moves in a straight line unless acted upon by a force.
(2) The acceleration of an object is directly proportional to the net force exerted and inversely proportional to the object's mass.
(3) For every action, there is an equal and opposite reaction.
I believe the most massive element that is naturally occurring on Earth is uranium (U), which has a nucleus of 92 protons
