Which of the following is true about ionic bonds?
Select one:
a. They are common when a metal atom bonds to other metal atoms.
b. They are basically a van der Waals attraction.
c. They are unidirectional in nature.
d. They occur when fermions interact with bosons.
e. The metal atom typically loses one or more electrons to become a positively charged ion.
Question 2
Complete
Properties typical of substances which exhibit ionic bonding include:
Select one:
a. They have low melting points.
b. The liquid form conducts electricity well.
c. They are malleable.
d. They are nontoxic.
e. They have rather low boiling points.
Question 3
________________________ is held together with ionic bonds.
Select one:
a. Table salt
b. Table sugar
c. Steel
d. Polyethylene
e. Gasoline
Question 4
Which of the following is NOT true about covalent bonds?
Select one:
a. They are common when a nonmetal atom bonds to a metal atom.
b. They are not an electrostatic attraction.
c. They have specific direction to them.
d. They have specific shapes to them.
e. All of the above are true.
Question 5
The atoms in molecules of __________________________ are held together with covalent bonds.
Select one:
a. polyethylene
b. salt
c. iron
d. calcium sulphate
e. helium
Question 6
The band gap model for metallic bonds involves the orbitals of many, closely packed metal atoms interacting to create numerous, closely spaced orbitals. This feature of the band gap model explains
Select one:
a. the malleability of metals.
b. the ductility of metals.
c. the shininess of metals.
d. the conduction of heat by metals
e. dislocations in the crystal lattice of meta