*MAKE NO MARKS ON THIS TEST! Only on your answer sheet.
Unit 4 Test–The Periodic Table & Chemical Bonding
SPI 0807.9.9 Use the periodic table to determine the properties of an element
Use the diagram below to answer question 1.
1. The diagram above is an enlargement of a section of the periodic table. What is the biggest
difference between an atom of cobalt (Co) and an atom of nickel (Ni) as shown in the periodic
table entries?
A. An atom of cobalt has a lower number of neutrons.
B. An atom of cobalt has more electrons.
C. An atom of nickel has more protons.
D. An atom of nickel has a higher value for atomic mass.
2. What forms when atoms share one or more pairs of electrons?
A. covalent bond
C. valence electron
B. ionic bond
D. nonmetal ion
3. In what order are the regions arranged on the periodic table, reading left to right?
A. inert gases, metals, nonmetals, metalloids
B. metals, metalloids, nonmetals, inert gases
C. metalloids, metals, nonmetals, inert gases
D. nonmetals, inert gases, metals, metalloids
4. Fluorine, chlorine, bromine, iodine, and astatine make up Group 17, the halogens. Why are these
elements grouped together?
A. They are all very reactive nonmetals with similar chemical properties.
B. They are all nonreactive gases with similar physical properties.
C. Their atoms all have eight electrons in their outer energy levels.
D. They all have the same atomic number.
5. Why do Group 1 and 2 metals become positive ions when they form bonds with nonmetals?
A they gain valence electrons
B they gain neutrons
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C they lose valence electrons
D they lose neutrons
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Unit 4
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6. All atoms form bonds using which of the following?
A. protons
B. electrons
C. valence electrons
D. neutrons
7. How are the elements in the periodic table arranged?
A. by their atomic mass
B. by their atomic number
C. by their chemical name
D. by their chemical symbol
Use the image below to answer question 8 & 9.
A
B
C
D
8. Which region on the periodic table do you find the most reactive metals?
9. Which region on the periodic table do you find semiconductors?
10. Which of the following would best be described as a covalent compound?
A emerald
B salt (NaCl)
C concrete (CaCO3)
D gasoline (C8H18)
11. Which types of atoms usually become negative ions?
A metals
B nonmetals
C noble gases
D metalloids
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12. According to its location on the periodic table, sodium can be described as…
A. an alkaline-earth metal.
B. a transition metal.
C. an alkali metal.
D. a metalloid.
13. Unknown element X has four energy levels, five valence electrons, and is a metalloid. What is
element X?
A. Si
C. Ge
B. Se
D. As
14. In the figure below, the black circles represent neutrons.
What is the atomic number of the stable atom shown?
A. 3
C. 4
B. 7
D. 11
15. Which statement best explains why Hydrogen is unique?
A. Hydrogen has 1 electron in its outer energy level.
B. Hydrogen is an Alkali metal.
C. Hydrogen is a reactive nonmetal gas.
D. Hydrogen is a very rare element.
16. Which statement is accurate about transition metals?
A. They are liquid at room temperature.
B. They have properties that are similar to Alkali metals.
C. They are dull, brittle & poor conductors of thermal energy.
D. They are shiny, malleable, ductile, & good conductors of thermal energy.
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17. Look at the Bohr-model of the atom to the right. Which of the following would describe what
element the atom is?
A. an alkaline-earth metal.
B. a noble gas
C. an alkali metal.
D. a metalloid.
18. Which of the following best indicates how reactive any
element will be?
A. how many protons are in the nucleus
B. how many electrons are in the outer shell
C. how many neutrons are in the nucleus
D. how many charges are in the nucleus
19. How does the un-reactivity of the noble gases make them useful?
A. krypton gas is useful in helping superman.
B. noble gases have very few useful applications.
C. helium helps lighter objects stay on the ground preventing them from floating away.
D. in the case of light bulbs the argon gas won’t react with the metal filament, making the
bulb last longer.
20. Between which of the following atoms is a covalent bond most likely to occur?
A. calcium and lithium
B. sodium and fluorine
C. nitrogen and oxygen
D. helium and argon
21. What are the left-to-right rows on the periodic table?
A. periods
B. families
C. properties
D. groups
22. How many neutrons are in the nucleus of a platinum atom?
A. 78
B. 107
C. 117
D. 273
23. Which of the following statements best describe how valence electrons in an atom can predict if
the atom forms bonds?
A. any element with less than 8 valence electrons will form bonds.
B. all elements form bonds through their valence electrons.
C. the transition elements all have 2 valence electrons & will form bonds.
D. Alkali metals always form bonds with Alkaline Earth metals
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24. Lithium shares similar chemical properties with which other element?
A. Neon
C. Rubidium
B. Beryllium
D. Selenium
25. Which of the following lists the elements in order, from those having the least protons to those
having the most protons in the atoms?
A. O, N, B, Li
C. Na, S, Al, Cl
B. O, S, Se, Te
D. Rb, K, Na, Li
26. Which of the following elements is a member of the halogen family and is located in period 3?
A. Argon (Ar)
C. Chlorine (Cl)
B. Bromine (Br)
D. Sulfur (S)
27. Which of the following statements describes the elements in family 16 of the periodic table?
A. They have six valence electrons.
B. They are all gases at room temperature.
C. They exist commonly as cations in nature.
D. They combine easily with elements in family 17.
28. A student hypothesizes that bromine (Br) has different chemical properties from krypton (Kr).
periodic table supports this hypothesis by indicating that
A.
B.
C.
D.
bromine is a metal while krypton is a nonmetal
one mole of bromine is heavier than one mole of krypton
bromine and krypton are members of the same family
bromine and krypton have different numbers of valence electrons
29. A periodic table of the elements is shown below.
The circled elements share which
characteristic?
A. They are nonmetals.
B. They are alkali metals.
C. They rarely form chemical bonds.
D. They have the same number of
electrons.
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The
*MAKE NO MARKS ON THIS TEST! Only on your answer sheet.
30. Which of the following is a covalent compound?
A C3H8
B NaCl
C SrBr2
D LiF
31. Which of the following would best be described as an Ionic compound?
A plastic toy
B candy corn
C concrete
D gasoline
32.Which of the following is an ionic compound?
A CH4
B CO2
C SrBr2
D SiO2
33. Colorado has some of the greatest mineral deposits of all time. Many of those mineral deposits
have very interesting chemical formulas. If I were to pick up an intensely bright red crystal with
a formula of MnCO3, which of the following could best be stated from this information?
A. It is a mineral called rhodochrosite and it is a covalent compound.
B. It is a metal called rhodochrosite with a metallic bond.
C. It is a mineral called rhodochrosite and it is an ionic compound.
D. It is a mixture called rhodochrosite and it has elements mixed in it.
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