What element is modeled here?

What is its charge right now?

Use the simulation to balance the charge. (make the net charge zero)

What part of an atom has a negative charge?

Lithium has 3 protons (+) charges. How many electrons (-) must be added to make it neutral?

Electrons are on the outer shells of an atom and balance its charge.

In order for the charge to be balanced the number of electrons equals the number of protons.

Electrons are on the outer shells of an atom and balance its charge.

In order for the charge to be balanced the number of electrons equals the number of protons.

Electrons are on the outer shells of an atom and balance its charge.

In order for the charge to be balanced the number of electrons equals the number of protons.

Use what you have learned about electrons to tell the difference between these two atoms.

How many electrons will be in a neutral atom of magnesuim?

How many electrons will be in a neutral atom of chlorine?

How many electrons will be in a neutral atom of neon?

How many electrons will be in a neutral atom of potassium?

List THREE differences between protons, neutrons, and electrons that you have learned so far.

List any simularities you can think of between protons, neutrons, and electrons that you have learned so far.