Question

The type of bonding between the atoms of a metal, molecule, or compound is determined by the electronegativities, and the difference in electronegativities, of the participating elements. Determine the type of bonding (covalent, ionic, or metallic) in the following substances.

Sulfur S8
Sulfur Dioxide
Brass
Nitrogen Dioxide
Magnesium Bromide
Sodium Chloride
Titanium

Answer 1

ok grab the periodic table and write down all electronegativities of all atoms that are in question and then we will continue

Answer 2

and after you have wrote down all electronegativities read trough this it is not too long and it is what you need to solve this
http://www.chemteam.info/Bonding/Electroneg-Bond-Polarity.html

Answer 3

@triciaal

Answer 4

types of bonding
covalent sharing mostly group 4 elements especially carbon
ionic transfer usually groups 1-3 give ( eg sodium, potassium, calcium) and 5,6,7 accept ( eg chlorine, oxygen, iodine, sulfur
metallic bonding metal atoms don't lose their valence electrons. Shared by all of the metal atoms. (eg gold, copper)

Answer 5

suggest go through the list ask yourself metal, sharing or transfer
Sulfur S8 not metallic sharing covalent
Sulfur Dioxide one sulfur with 2 oxygen sharing covalent
Brass this is an alloy metallic
Nitrogen Dioxide one nitrogen with 2 oxygen sharing covalent
Magnesium Bromide one magnesium 2+ with 2 bromine - transfer ionic
Sodium Chloride Na+ with Cl- transfer ionic
Titanium metal