Review

3. Review Quiz

Name: __________.    Score: __________

1. Which sub-atomic particle has a negative charge?
   a) Proton
   b) Neutron
   c) Electron
   d) Nucleus

2. Which element has the electronic configuration 2, 8, 3?
   a) Sodium
   b) Aluminium
   c) Magnesium
   d) Neon

3. Which of the following is NOT true about neutrons?
   a) They are found in the nucleus.
   b) They have a positive charge.
   c) They have a mass similar to protons.
   d) They have no charge.

4. The sub-atomic particle with the smallest relative mass is the ________.

5. The maximum number of electrons in the second shell of an atom is ________.

6. The number of protons in an atom is also called its ________ number.

Name each of the following:

1. CaO
   • .
2. SrCl₂
   • .

Give the formula for:

1. sodium sulfide
   • .
2. calcium nitride
   • .

.

.

Name the following compounds with special metals:

1. PbO
   • .
2. SnS₂
   • .
3. Fe₂O₃
   • .

Draw Lewis Models for BaO and MgCl₂.

.

.

.

.

.

Draw Dot and Cross diagrams for CO₂ and CH₄. Show their bond structure as well.