Answer:
It is the most recent idea of the atom and it is proved to be true
Explanation:
defined, a solid will always have a definite shape and volume because it doesn´t depend on its container shape
Answer:
The two variables affecting the rate of diffusion are the concentration gradient and size of the molecule. Concentration gradient: The movement of the substance is generally along the concentration gradient of the solute and it moves from a region of its higher concentration to a region of its lower concentration.