week 5
1) identify what kind of elements combine to form covalent bonding
A) chlorine, oxygen, nitrogen, carbon dioxide, hydrogen chloride
2) Define the term covalent bonding
A) covalent bonding is where one element gives away or gains an other electron to have a
full outer shell.
3) Describe what an elements electron dot diagram represents
A) the dot diagram shoes how full the outer shell is and how many more electrons it needs
4) Recall what properties most covalent compounds have in common
A) most covalent compounds are non-metals
5) Distinguish between a single covalent and a triple covalent bond, in terms of the number
of electrons involved
A) the difference between a single covalent and a triple covalent bond is a single has one
pair and a triple has 3 pairs
6) For the covalent compounds shown below, state whether their bonds are single, double or
triple covalent bonds
A) double
B) single
C) triple and single
7) Draw electron dot diagrams to show how the following covalent compounds form
A) Tetrachloromethane (CCl4)
B)Ammonia (NH3)
C) Carbon disulfide (CS2)
8) explain why noble gasses don’t form covalent bonding
A) the reason that noble gases don’t form covalent bonding because they have full outer shells
9)Explain why CO2 (a compound) and O2 (an element) are both molecules.
A) because both of these are gasses
10) silicon dioxide