What is true about all of these atoms?

they cannot be solids.
they are the largest units of matter.
they are the only types of atoms that exist.
they cannot be divided.

The correct statement about the atoms is " They cannot be divided".

Explanation:

Atom is a smallest unit of the matter. The atom consists of the electrons, protons, nucleus and neutrons.

The electrons, protons and neutrons are the sub atomic particles of the atom.

Electron has a positive charge which revolves in the orbit of the atom. Protons and neutrons are located in the nucleus of the atom.

Therefore, the correct statement about the atoms is " They cannot be divided".

c) up is the direction the magnetic force is acting on the charge.

pythagoras' theorem

square root (-5^2+9^2)

square root (25+81)

square root (106)

angle is tan^-1(9/5)

neg x, pos y