Answer:
The constant motion of particles in a gas allows a gas to fill a container of any shape or size. Particles in a gas are in constant, random motion. The motion of one particle is unaffected by the motion of other particles unless the particles collide.
THE answer is D
As G goes with C
And T goes with A
Answer:
Add them!
Explanation:
The mass number of an atom is its total number of protons and neutrons
