BONDS

IONIC

100

Ionic bonds are formed from the ___ of electrons.

transfer

200

Cations form when metals ___ electrons.

lose

300

The force that holds two ions together is ___.

electrostatic force (opposites attract)

400

Ions in a solid state are called ____.

crystals.

500

The notation of MgCl₂ is a ___.

formula unit

COVALENT

100

Covalent bonds form between ___.

nonmetals.

200

Covalent bonds have ___ electronegativity differences. 

low

300

When two atoms share electrons ___, nonpolar bonds form.

equally

400

The name for a neutral group of nonmetals bonded together is a ___.

molecule

500

Diatomic molecules form ___ covalent bonds.

nonpolar

METALLIC

100

Two or more metals mixed together form ___.

alloys

200

Metals are conductive because their ___ electrons are delocalized.

valence.

300

Due to mobile electrons, metals can conduct ___.

heat or electricity.

400

Delocalized electrons in metals create ___ which are positively charged.

cations

500

Metallic bonds are typically ___ than covalent bonds.

stronger

BOND PROPERTIES

100

Bond Strength: The greater the difference in electronegativities, the___ bond.

stronger

200

Bond Length: The greater the force of attraction the ___ the bond.

shorter

300

Multiple bonds have ___ bond energy than single bonds.

higher

400

The greater the electronegativity difference, the __ the bond energy.

higher

500

As bond length decreases, bond energy ___.

increases.

POLARITY

100

Polar bonds form when electronegativity differences are ___ than nonpolar.

greater

200

Two of the same nonmetals form a ___ bond.

nonpolar.

300

Molecules with higher melting points are ___.

polar

400

Fluorine and chlorine will form a ___ covalent bond.

polar

500

Bond A's energy is 350 kJ/mol, and bond B's energy is 250 kJ/mol.  The shortest bond is likely ___.

A