Electron

Neutron

Proton

Any of the 3 options is correct.

Electron and neutron

Electron and proton

Proton and neutron

Any of the 3 options is correct.

Option 1: Neutron has a no charge.

Option 2: Neutron has zero charge.

Option 3: Neutron can either be positive or negative

Any of the 3 options is correct.

The atom has equal number of protons, electrons, and neutrons.

The atom is electrically neutral because of its equal number of protons and electrons.

The atom has a stable nucleus due its equal protons and neutrons.

The stable atom is carbon-12.

All options are correct.

6

12

18

24

Atomic Number

Main Energy Levels

Mass Number

Nucleus

Count the number of electrons. This is always the atomic number of the atom.

Count the number of protons. This is always the atomic number of the atom.

Get the sum of the electrons and the protons. This is always the atomic number of the atom.

Get the sum of the protons and electrons. This is always the atomic number of the atom.

29

35

63.55

64

29

35

63.55

64

29

35

63.55

64

Cannot be determined