The atomic mass of an element provides A. the number of protons and neutrons in an atom.
Force of the collisions increases due to increase in temperature.
Explanation:
Increase in temperature affects the average speed and kinetic energy of the particles.
The average speed of the gas particles gets increased , Kinetic energy of the gas particles also gets increased.
If the volume is held constant, the increased speed of the gas molecules results in more frequent and more forceful collisions with the walls of the container, therefore increasing the pressure.
Therefore, force of the collisions increases due to increase in temperature.
Answer: compound
Explanation:
Element is a pure substance which is composed of atoms of similar elements.It can not be decomposed into simpler constituents using chemical reactions.Example: Copper 
Compound is a pure substance which is made from atoms of different elements combined together in a fixed ratio by mass.It can be decomposed into simpler constituents using chemical reactions. Example: water 
Mixture is a substance which has two or more components which do not combine chemically and do not have any fixed ratio in which they are present. Example: Air
It matters to the aerodynamics of it because sometimes it's good to have the weight but only if it can take it.
Answer:
Atomic radius is determined as the distance between the nuclei of two identical atoms bonded together. The atomic radius of atoms generally decreases from left to right across a period. The atomic radius of atoms generally increases from top to bottom within a group.
