An atom is the what makes up elements. It is made up of positive particles (protons), negative particles (electrons), and neutrons (no charged particles).
Protons and neutrons are in the center of the atom while electrons hover around.
You cannot predict an atom. This is because it is not anything to guess about -if you know what I mean.
Happy to help!
Answer:

Explanation:
The expression for the root mean square speed is:
R is Gas constant having value = 8.314 J / K mol
M is the molar mass of gas
Molar mass of water vapor = 18.0 g/mol = 0.018 kg/mol
Temperature = ?
m/s

Atoms cannot be subdivided into smaller particles - incorrect as you can subdivide atoms into protons, neutrons and electrons
Answer:
"a chemical reaction in which acid and a base react quantitatively with each other"
Explanation:
Did you mean "atp"? if so It is less I hope this helps please mark brainliest :)