Ion formation

An object becomes positively charged by...

• gaining negative charges.

• losing negative charges.

• gaining positive charges.

• losing positive charged.

Metal atoms are most likely to form...

• positively charged cations.

• negatively charged anions.

• neutral molecules.

• bations.

The Lewis Dot structure for aluminum would have ______ electrons.

• 13

• 3

• 8

• 27

Valence electrons are those that are

• closest to the nucleus.

• freely floating between atoms.

• in the outermost energy level of the atom.

• unable to become involved in chemical bonding.

Oxygen has six valence electrons. When forming an ion, oxygen will

• lose six electrons and have a charge of +6.

• lose six electrons and have a charge of -6.

• gain two electrons and have a charge is +2.

• gain two electrons and have a charge of -2.

Atoms that have gained electrons form

• cations.

• anions.

• negions.

• positrons.

Which of the following elements is an exception to the octet rule?

• helium

• oxygen

• chlorine

• magnesium

What is an ion?

• A Charged Atom
• A Large Atom
• A Small Atom
• A Neutral Atom

How many electrons are in a Li⁺ ion?

• 1
• 2
• 3
• 4

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

• -1
• -2
• +1
• +2