Unit 2.1 Bonding Structure and Properties

What are the three types of strong chemical bonds?

• Ionic, Metallic, Covalent

• Ionic, Hydrogen, Van der Waals

• Metallic, Hydrogen, Ionic

• Covalent, Van der Waals, Metallic

What type of bonding occurs between metals and non-metals?

• Covalent bonding

• Metallic bonding

• Ionic bonding

• Hydrogen bonding

What happens to metal atoms during ionic bonding?

• They gain electrons to become negatively charged

• They lose electrons to become positively charged

• They share electrons equally

• They form covalent bonds

What is the structure formed by ions in ionic compounds?

• Simple molecular structure

• Giant ionic lattice

• Covalent network

• Metallic grid

How can electron transfer during the formation of an ionic compound be represented?

• By a dot and cross diagram

• By a line and dot diagram

• By a bar and line diagram

• By a circle and cross diagram

What causes ionic compounds to have high melting and boiling points?

• Weak van der Waals forces

• Strong electrostatic attraction between oppositely charged ions

• Presence of delocalized electrons

• Weak hydrogen bonds

Why don't solid ionic compounds conduct electricity?

• Ions are free to move

• Electrons are delocalized

• Ions are fixed in place

• Electrons are tightly bound

What happens to ionic compounds when they are molten or dissolved?

• They become brittle

• They conduct electricity

• They lose their ions

• They become malleable

What is a characteristic property of metallic compounds?

• Brittle and fragile

• High melting and boiling points

• Low conductivity

• Weak bonds

What allows metals to be malleable and ductile?

• Fixed ions

• Delocalized electrons

• Strong covalent bonds

• Weak ionic bonds