Atomic Structure

Subatomic particles with a negative charge

Subatomic particles with a positive charge

Subatomic particles that are neutral in charge

Look at this picture of Argon off the periodic table. Which of the following is true for this element?

18 protons

40 protons

22 protons

21.9 protons

Which part of an atom is used to identify it?

The atomic mass of an atom is equal to

The nucleus of an atom is made of

Outside the nucleus of an atom are these: protons, neutrons, quarks, electrons

The mass of this particle is so small that it is not counted.

The charge of the nucleus of all atoms or ions