The early ideas of the atom states that the indivisible object is hollow or is a solid object with nothing inside. The later discoveries or works of the scientists states that inside the atoms are the subatomic particles which are the electrons, protons, and neutrons.
A solid formed from liquid reactants chemical reactions is called a precipitate.
If it loses an electron, it will become an ion.
It's just graphing. puck acceleration is the x axis and swing length is the y axis