Author Question: Which is the smallest particle? A) molecule B) atom C) proton D) neutron E) ... (Read 63 times)

Haya94 · **on:** Jul 29, 2018

Which is the smallest particle?

A) molecule
B) atom
C) proton
D) neutron
E) quark

Question 2

Although solid matter is mostly empty space, we don't fall through the floor because

A) atoms are constantly vibrating, even at absolute zero.
B) of nuclear forces.
C) of gravitational forces.
D) of electrical forces.
E) none of the above