Review of Grade 9 Chemistry
Name:
Part A – Periodic Table Trends
1) What is the chemical symbol for chromium, sodium, krypton, and bismuth? _______________________
2) List the seven diatomic elements? _________________________________________________________
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3) What are the possible ionic charges of lead and tin? __________________________________________
4) What is the family name of group 17? ______________________________________________________
5) What is the family name of group 18? ______________________________________________________
6) What is the ionic charge of all alkaline earth metal? ___________________________________________
7) How many valence electrons does a carbon atom have? _______________________________________
8) What is the ionic charge of all alkali metals? _________________________________________________
9) How many protons does a lithium ion have? _________________________________________________
10) How many electrons does a lithium ion have? _______________________________________________
11) How many energy levels does cesium have? ________________________________________________
12) How many electrons can the first, second and third energy levels hold? ___________________________
13) What element is located period 3 and group 14? _____________________________________________
14) How many valence electrons do all atoms (except hydrogen and helium) need to be stable? ___________
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15) What charge does a sulfide ion have? ______________________________________________________
16) What does oxygen need to do to ionize? ____________________________________________________
Part B – Standard Atomic Notation
Element
Name
Atomic
Number
Atomic
Mass
Standard
Atomic
Notation
Number of
Number of
Number of
Protons
Electrons
Neutrons
Copper
27
Al
13
Part C – Bohr Rutherford Diagrams
1) Boron atom
2) Aluminum ion
3) Fluoride ion
Part D – Naming and Writing Chemical Compounds
Give the compound name or formula as required for the following univalent ionic compounds.
1. Na2O
4. potassium chloride
2. MgBr2
5. magnesium fluoride
3. Be3N2
6. sodium sulfide
Give the compound name or formula as required for the following multivalent ionic compounds.
1. PbCl4
4. iron (II) oxide
2. SnCl2
5. lead (II) nitride
3. CuF
6. tin (IV) bromide
Give the compound name or formula as required for the following polyatomic ionic compounds.
1. MgCO3
4. lithium sulphate
2. Na2SO4
5. calcium hydroxide
3. K3PO4
6. lead (II) hydrogen carbonate
Give the compound name or formula as required for the following molecular compounds.
1. SO2
4. NBr3
2. silicon tetrabromide
5. nitrogen monophosphide
3. dinitrogen pentoxide
6. CCl4
Part E - Bohr-Rutherford Diagrams
1) Draw the Bohr-Rutherford diagram for NITROGEN in the box provided.
2) Is nitrogen a metal, metalloid, or a non-metal?
3) How many valence electrons does nitrogen have?
4) How many inner electrons does nitrogen have?
5) When nitrogen ionizes what charge will it have?
6) What is the ion notation of the nitride ion?