Polymers

The higher the charge of ions, the smaller the interaction among ions in ionic solids.

• True

• False

Property which makes ionic solids easy to cleave

• Brittleness

• Ductility

• Electrical insulators

• Malleability

Ionic solids can be packed closely like metals.

• True

• False

The_____is a molecular solid.

• graphite

• diamond

• water

• sodium chloride

Hardest known material

• diamond

• graphite

• ruby

• gold

Bond between carbon atoms in graphite layers

• covalent

• intermolecular

• ionic

• metallic

Type of semiconductor that belong in Group 4A

• elemental

• compound

• multiple

• simple

Trend in band gap as one goes down in a group of semiconductors

• increases

• decreases

• the same

• accelerates

Average number of valence electron per atom in a compound semiconductors

• 4

• 8

• 12

• 1

Type of doping which creates extra electrons

• n

• p

• parallel

• perpendicular