SNC 1D0
Name: _________________________
Atoms & Elements
Date: _________________________
Unit Test
KNOWLEDGE AND UNDERSTANDING / 42 marks
COMMUNICATON / 13 marks
INQUIRY / 20 marks
TOTAL
/ 75 marks
PART A: MULTIPLE CHOICE (Knowledge and Understanding) [10 marks]
Place the letter of the BEST response ON THE BLANK LINE next to the question (MAKE YOUR LETTERS CLEAR).
1 ____
1. A change of state that involves a LOSS of energy is…
a. Melting b. Freezing c. Vaporizing d. Substituting e. All of the above 2 ____
2. A change of state that occurs when a gas turns into a liquid is called…
a. Liquification b. Sublimation c. Vaporization d. Condensation e. None of the above 3 ____
3. According to the particle theory, particles are MORE attracted to each other when they… a. Have high energy
b. Have no energy c. Are close togetherd. Are far apart e. None of the above 4 ____
4. According to the particle theory, an increase in temperature means that the… a. Speed of the particles increases
b. Speed of the particles decreases
c. Substance becomes a gas d. Density increases
5 ____
5. What is the density of gold if a gold brick with a volume of 75cm3 has a mass of 1500g?
a. 0.05 g/cm3 b. 20 g/cm3
c. 1575 g/cm3 d. 112 500 g/cm3
e. None of the above
6 ____
6. The majority of the elements in the periodic table are:
a. Non-metals b. Metals c. Metalloids d. Gases e. They are all different 7 ____
7. Ca2+ indicates that calcium… a. Has lost 2 electrons b. Has gained 2 electrons
c. Has gained 2 protons d. Has lost 2 neutrons
e. Is an isotope
8 ____ 8. The 14 in Carbon-14 indicates… a. the group # b. # of neutrons c. # of protons d. # of electrons e. the atomic mass 9 ____ 9. Which of the following does not belong?a. rocks b. juice c. plasma d. car exhaust e. None of the
above 10 ____
10. Which of the following indicates a chemical change? a. Eggs
frying b. Rain clouds forming
c. Fog on mirrors after showering
d. Tea made from tea bags and hot water
e. None of the above
PART B: COMPLETE THE TABLES (Knowledge and Understanding) [12 marks] 1. Complete the following table. BE SURE TO INCLUDE UNITS WHEN NEEDED (1 mark each
box)
Type of Particle Charge Location in the Atom Proton
Electron Neutron
2. Complete the following table using JOT NOTES. (1 mark each box) Substance
Classification (Element, Compound, Homogeneous mixture or Heterogeneous
mixture)
Justification for Classification
Chlorine gas (Cl2) Bubbly drink (ex. Sprite)
PART C: MATCHING (Knowledge and Understanding) [12 marks] Match the terms in with the appropriate definition or phrase. (Each definition is only used once so select the BEST match for each and MAKE YOUR LETTERS CLEAR).
Definition Term
1. Developed the theory of a nucleus to explain his gold foil experiment. A. Physical change
2. Examples would be Boron, Germanium, and Tellurium B. Chemical change
3. CO2 would be an example of how to write this. C.
Chemical formula
4. Are usually shiny, silver elements that can conduct electricity D. Chemical symbol
5. A capital letter followed by a lower case letter. E. Pure substance
6. The formation of a new substance occurs. F. Mixture
7.
Forming liquid metal into a mould then cooling it to form a solid car
part. G. Bohr
8.
Developed the theory that atoms are indivisible spheres like billiard
balls. H. Rutherford
9. Examples would be Carbon, Sulfur and Iodine. I. J.J. Thompson
10.
Greek philosopher who tried to change the four element view of
matter. J. Nagaoka
11.
Developed a theory of electron orbits to explain the spectra of
elements. K. Dalton
12. Developed the “raisin bun” (aka chocolate chip cookie) theory of the atom where electrons are small bits in a positive sphere.
L. Mendeleev M. Democritus N. Alchemist O. Metal P. Metalloid Q. Non-metal
PART D: SHORT ANSWER (Knowledge and Understanding) [8 marks]
/4 /4
1. Name the atoms AND state the number of atoms in the following compounds. (1 mark each box) Type of atoms Number of each type of atom a) H3PO3
b) Pb(NO3)2
c) Place the name of the family from the periodic table on the blank line beside each description below.
i) Family which are unreactive __________________________ ii) Family of extremely reactive NON-METALS __________________________ iii) Family of METALS that is most reactive
__________________________
iv) Family that has 2 valence electrons __________________________
PART E: WORD EQUATIONS (Communicaton) [4 marks] Write a proper WORD EQUATION for the following. (2 marks each)
1. Potassium chlorate, when heated, breaks down into potassium chloride and oxygen gas.
2. Hydrochloric acid combined with magnesium metal creates magnesium chloride and hydrogen gas.
PART F: CREATING TABLES (Communicaton) [9 marks] 1. Adam Ikmass and Alec Trawn observed the PHYSICAL AND CHEMICAL PROPERTIES of three
common substances and recorded their observations as follows:
Table salt properties White; crystalline solid; has a density of 2.16 g/cm3; liquefies at 801°C; non-combustible
Sulfur Burns in air; reacts with oxygen to form sulfur dioxide (SO2) gas; melts at 112.8°C; non-combustible
Alcohol Colourless; liquid at 20°C; low viscosity; pure sample has a density of 0.789 g/cm3; combustible – burns in air with a blue flame
ORGANIZE this information into a PROPER DATA TABLE that classifies the properties of the substances under the column headings: SUBSTANCE, QUALITATIVE PHYSICAL
PROPERTIES, QUANTITATIVE PHYSICAL PROPERTIES, and CHEMICAL PROPERTIES. (BE SURE TO INCLUDE A PROPER TITLE) (9 marks)
PART G: PERIODIC TABLE TRENDS (Inquiry) [6 marks] 1. The HYPOTHETICAL periodic table shown below is organized in the same way the real periodic
table is organized but with fewer rows and columns. Using the letters indicated in the hypothetical periodic table answer the following questions. (Letters may be used more than once) (1 mark per question) J K F D R Q
a) Which pair of elements has the same number of valence electrons? _______________________
b) Which pair of elements is in the same period? _______________________
c) Which pair of elements is in the same group? _______________________
d) Which element has the largest atomic number? _______________________
e) Which element(s) would be classified as metals? _______________________
PART H: ELEMENT PROPERTIES (Inquiry) [14 marks] In “Middle Earth” three new elements were discovered. Some of their properties are listed in the table below.
Element Name # of protons # of neutrons # of electrons
Gandolfium (Gf) 12 14 12
Smeagolium (Sl) 20 21 18
Frodonium (Fd) 9 9 10
1. Use the table of elements shown above to complete the following table. (1 mark each) Element Name NumberAtomic Atomic Mass
Gandolfium (Gf) Smeagolium (Sl) Frodonium (Fd)
2. Use the table of elements shown above to answer the following questions in the space provided. (1 mark each)
a) Which element(s) is made up of CHARGE-STABLE atoms? _______________________
b) Which element(s) has (have) a positive electrical charge? _______________________
c) Which element(s) is (are) ions? _______________________
3. Draw a Bohr-Rutherford diagram of Frodonium in the space provided. (2 marks)
4. Based on your knowledge of the periodic table are Gf, Sl, and Fd actually new elements? Explain why or why not.
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