Student: _______________________
Year 9 Topic Test – Atoms
Tuesday, Week 7
1) History of the atom:
Fill in the following table
Scientist Name
Name of atomic model
Democritus
(8 marks)
Drawing of model
J. J. Thompson
Rutherford
Niels Bohr
2) Sub atomic particles and their features:
Fill in the following table with the features of each of the subatomic particle
Name of particle
Charge
Location in atom
(12 marks)
Relative mass
3) Below is the periodic information for different elements. Answer the following questions
using the above information and your prior knowledge:
(4 marks)
Define atomic
number:
What is carbon’s
atomic number
Define mass number
What is phosphorus’s
mass number
4) Using the information above, how many of each subatomic particle do silicon and carbon
have?
(6 marks)
Subatomic particle
Proton
Number in Carbon
Number in Phosphorus
Electron
Neutron
5) Draw an atom each of lithium and fluorine in the space below. Ensure all your subatomic
particles are labelled, in the right location and that you have the right number of each
particle drawn
(6 marks)
Lithium
Fluorine
6) Categorise the following elements as either metals, non-metals or, metalloids (6 marks)
Element
Category
Element
Category
Aluminium
Oxygen
Germanium
Potassium
Hydrogen
Silicon
7) Identify the element symbol shown below and identify which group and period each one is
found.
(9 marks)
Symbol
Ca
P
He
Element
Name
Group
Period
8) Name one element found in each of the following categories:
Noble gases
(4 marks)
Halogens
Alkaline metals
Transition metals
9) Define the 2 terms below and draw examples of each
Atoms
Definition
(4 marks)
Molecules
Diagram
10) Identify each of the following examples as elements, compounds, or mixtures
A
B
C
D
E
F
G
H
(8 marks)
11) How many electrons fit in each of the following electron shells? Identify the elements shown
below from their electron configuration
(6 marks)
st
1 shell
2nd shell
3rd shell
4th shell
___________________
____________________
12) Draw the electron configuration for the following elements:
Element
Carbon
Magnesium
Draw
electron
arrangement
(6 marks)
Beryllium
Electron
configuration
(numbers)
13) Define each of the following terms:
Term
Ion
(3 marks)
Definition
Cation
Anion
14) Fill in the following table:
Element
Atomic
number
Electron
configuration
Does it form an
anion or a cation
(9 marks)
Ionic charge
8
15
17
15) a. What do all atoms want?
To have a __________________ ___________________
(3 marks)
___________________ of electrons
b. Which category of elements do not form ions? Why not?
16) Define the following terms
Ionic
compound
(2 marks)
Covalent
compound
17) What are the differences between ionic and covalent compounds?
What they are
made up of
(2 marks)
How they are
named
18) What is a polyatomic ion?
19) The table below contains a mix of ionic and covalent compounds.
What is its formula
What is its scientific name
(1 mark)
(18 marks)
Is it an ionic or
covalent compound?
NaCl
MgCl2
NBr3
N2Cl7
LiOH
CaSO4
Mg(NO3)2
NH4NO3
** EXTENSION**
Si(SO4)4
** EXTENSION**
Sb(OH)5
20) Use your valency and periodic tables to answer the following questions
(18 marks)
Scientific Name of
Working Out Space
What is its chemical
Compound
formula
Lithium Sulfide
(Scientific Name of
Compound cont.)
Sodium Nitride
Copper (II) Iodide
Aluminium Oxide
Silver Chloride
Iron (III) Hydroxide
Ammonium Nitride
Potassium Sulfate
Zinc Carbonate
(Working Out Space cont.)
(What is its chemical
formula cont.)
RESULTS:
Overall Mark:
____/135
Percentage:
______%
Teacher Comment:
Student Reflection:
What I did well:
What I need to work on for next time:
PERIODIC TABLE
VALENCY TABLE
METALS, METALLOIDS, AND NON-METALS