What is an ion?

• A charged atom

• A large atom

• A small atom

• A cute atom

Which particles change the charge in atoms when ions are formed?

• Protons

• Neutrons

• Electrons

• Isotopes

Why are ions formed?

• To make our lives difficult

• Because atoms have the same number of protons and electrons.

• Because atoms want 8 valence electrons.

• Because atoms gained neutrons.

Cations are _________ and anions are __________.

• negative/positive

• positive/neutral

• neutral/negative

• positive/negative

An atom becomes _____________ when it loses electrons.

• Positive

• Negative

• Neutral

• Invisible

Ionic bonds form between two ions that have...

• negative charges

• positive charges

• opposite charges

• neutral charges

Cations are ____________ and anions are ____________.

• metals, nonmetals

• metalloids, nonmetals

• nonmetals, metals

• metalloids, metals

What is the charge of an atom that has lost one electron?

• -1

• +1

• -2

• +2

Elements on the LEFT side of the periodic table will most likely form: (tap picture to enlarge periodic table)

• Positive ions

• Negative ions

• Neutral ions

• None of these

Barium (Ba) atoms want to form...

• an anion

• a cation

• an isotope

• a chemical