DATE:
NAME:
CLASS:
BLM 1-9
ASSESSMENT
Chapter 1 Test
Goal • Demonstrate your understanding of the information presented in Chapter 1.
What to Do
Carefully read the instructions before answering each set of questions.
True/False
On the line provided, indicate whether each statement is true (T) or false (F). If the sentence is false, rewrite it to
make it true.
____ 1. Positively charged ions are referred to as cations.
____ 2. A material safety data sheet must show the date on which it was prepared.
____ 3. Rutherford’s model of the atom was rejected because it did not include neutrons.
____ 4. The element mercury is the only element in the periodic table that is a liquid at room temperature.
____ 5. All atoms of any one element must have the same number of neutrons.
Matching
Match each description in column A with the correct term in column B. Write the letter for the term on the line
beside the description.
A
____ 6. sharing of valence electrons
____ 7. ion with a negative charge
____ 8. compound formed by the mutual attraction of two ions
____ 9. neutral particle composed of two or more atoms that share electrons
____ 10. regular repeating pattern of ions strongly bonded together
B
(a) anion
(b) crystal lattice
(c) covalent bond
(d) ionic compound
(e) molecule
Copyright © 2004 McGraw-Hill Ryerson Limited. Permission to edit and reproduce this page is granted to the purchaser for use in her/his classroom. McGraw-Hill Ryerson shall not
be held responsible for content if any revisions, additions, or deletions are made to this page.
DATE:
NAME:
CLASS:
BLM 1-9
ASSESSMENT
Chapter 1 Test (continued)
Fill in the Blanks
Use the following terms to complete the sentences below. You will not need to use all the terms.
law of conservation of mass
isotope
ion
energy level
valence electron
nucleus
law of chemical reactions
atom
nucleon
metalloid
chemical
halogen
alkali metal
reaction
covalent bond
11. The _________________________ states that matter can be neither created nor destroyed in any chemical
reaction.
12. A(n) _________________________ is any of two or more atoms of a specific element that are chemically
identical but that have different masses.
13. A hydrogen atom has only a single occupied _________________________.
14. A(n) _________________________ is any atom or group of atoms that has a positive or negative charge.
15. A(n) _________________________ is the mutual attraction of two atoms through a shared pair of electrons.
Multiple Choice
Circle the letter for the choice that best completes the statement or answers the question.
16. Which statement is not part of Dalton’s atomic theory?
(a) All matter is made up of small particles called atoms.
(b) Atoms are made up of protons, neutrons, and electrons.
(c) Atoms cannot be created, destroyed, or divided into smaller particles.
(d) A chemical reaction changes the way that atoms are arranged.
17. J. J. Thomson discovered that cathode rays are
(a) emitted from the nucleus of an atom
(b) a stream of charged atoms
(c) a result of nuclear reactions
(d) composed of tiny, negatively charged particles
Copyright © 2004 McGraw-Hill Ryerson Limited. Permission to edit and reproduce this page is granted to the purchaser for use in her/his classroom. McGraw-Hill Ryerson shall not
be held responsible for content if any revisions, additions, or deletions are made to this page.
DATE:
NAME:
CLASS:
BLM 1-9
ASSESSMENT
Chapter 1 Test (continued)
18. Isotopes are best described as two atoms of the same element that
(a) become electrically charged
(b) differ in mass but are chemically alike
(c) give away electrons to become positively charged
(d) have the same mass but different chemical properties
19. The isotope 40
20 Ca has
(a) 40 protons and 20 neutrons
(b) 20 protons and 40 neutrons
(c) 20 protons and 20 neutrons
(d) 40 electrons and 20 neutrons
20. Elements in the same period in the periodic table
(a) share similar properties
(b) have the same atomic weight
(c) cannot react with each other
(d) have the same number of energy levels
21. Which electron dot diagram correctly represents a nitrogen atom?
(b)
(c)
(d)
(a)
22. How many protons does an atom of silver contain?
(a) 47
(b) 108
(c) 61
(d) 60
23. An electron dot diagram shows
(a) unpaired electrons only
(b) valence electrons only
(c) electrons from the innermost energy level only
(d) all the electrons in an atom
24. An atom is found to have seven valence electrons. To which family of elements in the periodic table does this
atom belong?
(a) noble gases
(b) halogens
(c) alkaline earth metals
(d) alkali metals
25. The nucleus of any atom, except hydrogen, is made up of
(a) only neutrons
(b) only protons
(c) equal numbers of electrons and protons
(d) neutrons and protons
Copyright © 2004 McGraw-Hill Ryerson Limited. Permission to edit and reproduce this page is granted to the purchaser for use in her/his classroom. McGraw-Hill Ryerson shall not
be held responsible for content if any revisions, additions, or deletions are made to this page.
DATE:
NAME:
CLASS:
BLM 1-9
ASSESSMENT
Chapter 1 Test (continued)
Short Answer
Answer each question in the space provided. Use complete sentences when required.
26. Describe how Rutherford’s gold foil experiment led to a rejection of Thomson’s model of the atom.
27. How is an ionic bond different from a covalent bond?
28. Use electron dot diagrams to show how potassium, K, and nitrogen, N, form a compound.
Copyright © 2004 McGraw-Hill Ryerson Limited. Permission to edit and reproduce this page is granted to the purchaser for use in her/his classroom. McGraw-Hill Ryerson shall not
be held responsible for content if any revisions, additions, or deletions are made to this page.
DATE:
NAME:
CLASS:
BLM 1-9
ASSESSMENT
Chapter 1 Test (continued)
Long Answer
Answer each question in the space provided. Use complete sentences, and include diagrams (with labels) when
required.
29. Oxygen is the most abundant element found on Earth. Oxygen is a key component in many organic and
inorganic compounds.
(a) Although oxygen-16 is the most common isotope of oxygen, oxygen-17 and oxygen-18 are also present.
Despite the differences in the atomic structures of the three isotopes, there is no difference in how they
form ionic or molecular compounds with atoms of other elements. Explain how this can be.
(b) Two oxygen-containing compounds are sodium oxide, Na2O, and silicon dioxide, SiO2. Draw electron dot
diagrams to represent these two compounds.
(c) How is the bonding in sodium oxide different from the bonding in carbon dioxide?
Copyright © 2004 McGraw-Hill Ryerson Limited. Permission to edit and reproduce this page is granted to the purchaser for use in her/his classroom. McGraw-Hill Ryerson shall not
be held responsible for content if any revisions, additions, or deletions are made to this page.