Unit 3 Chem Test - Bonds

The electrostatic force that holds oppositely charged particles together in this type of compound. The metal ion transfers electrons to an atom lacking a full valence shell, giving the atoms positive and negative charges. These oppositely charged cations and anions then attract, forming an ion.

The attraction of a metallic cation for delocalized electrons. The delocalized valence electrons fully encircle every cation, holding the metal atoms together in a lattice form.

A chemical bond that results from the sharing of valence electrons. These type of bonds are formed between two nonmetal atoms or nonmetal atoms and metalloids.

NaCl CuSo4

Fe Ti

Cl2 Sugar Co2 wax oil

each positive ion is completely surrounded. by negative ions, just as each negative ion is completely surrounded by positive ions, causing the cations and anions to attract.

each metal atom is closely surrounded by 8 to 12 other metal atoms; however, there are delocalized electrons which serve as a "buffer" and cause the metal atoms to attract rather than repel.

the atoms are bonded by covalent bonds in a continuous structure.

the molecules have strong intramolecular covalent bonds with weak intermolecular connections.

high (melting)

moderately high with great variety (melting)

very high (melting)

low (melting)

high (boiling)

very high (boiling)

low (boiling)

not in solid state; conducts when dissolved in water/in liquid state

conducts in solid state

no, graphite is an exception

no

hard, rigid, brittle

malleable, ductile

hard, stiff, brittle

often liquid or gas at room temp., relatively soft