Bonding Homework

When does an atom become an ion?

• When it gains or loses electrons and takes on a charge.

• When it is stable because it has a full set of valence electrons.

• When it forms a compound with another atom.

What charge does magnesium take on?

• +1

• +2

• +3

Ionic bonds are between...

• nonmetals and nonmetals
• carbon and oxygen
• metals and nonmentals
• hydrogen and chlorine

What are valence electrons?

• sum of the protons and neutrons
• protons minus electrons
• electrons in the inner shells
• electrons in the outer shell

How many valence electrons does oxygen have?

• 2
• 4
• 5
• 6

Covalent bonds are between...

• two or more nonmetals
• sodium and chlorine
• metals and metals
• metals and nonmetals

What is the name for an ion with a positive charge?

• cation
• anion
• onion
• union

What is the name for an ion with a negative charge?

• cation
• anion
• onion
• union

What is the basis of a metallic bond?

• the attraction of neutral metal atoms.
• the attraction between protons and neutrons.
• the attraction between positive metal ions and interlocking electrons.
• the attraction between positive metal ions and free floating electrons.

Predict the bond that will form between Be and F.

• Ionic
• Covalent