Integrated Science Chapter 5 PRETEST
Multiple Choice
Identify the choice that best completes the statement or answers the question.
____ 1. Mendeleev arranged the known chemical elements in a table according to increasing
a. / atomic number. / c. / number of protons.b. / number of electrons. / d. / mass.
____ 2. In a periodic table, a set of properties repeats from
a. / element to element. / c. / column to column.b. / group to group. / d. / row to row.
Figure 5-1
____ 3. Figure 5-1 shows a portion of a blank periodic table. Identify the segments labeled A and B.
a. / A and B are both periods. / c. / A and B are both groups.b. / A is a period and B is a group. / d. / A is a group and B is a period.
____ 4. Moving from left to right across a row of the periodic table, which of the following values increases by exactly one from element to element?
a. / isotope number / c. / atomic mass unitb. / atomic number / d. / mass number
____ 5. The atomic mass of an element is
a. / the sum of the protons and neutrons in one atom of the element.b. / twice the number of protons in one atom of the element.
c. / a ratio based on the mass of a carbon-12 atom.
d. / a weighted average of the masses of an element’s isotopes.
____ 6. One twelfth the mass of a carbon-12 atom is used to define a(an)
a. / atomic number. / c. / mass number.b. / atomic mass. / d. / atomic mass unit.
____ 7. Which list of elements contains only metals?
a. / carbon, iodine, tin / c. / helium, iron, copperb. / tin, copper, cesium / d. / iodine, carbon, argon
____ 8. Which statement is true about the metalloid silicon?
a. / Silicon is a better conductor of electric current than silver is.b. / Silicon does not conduct electric current under any conditions.
c. / Silicon's ability to conduct electric current does not vary with temperature.
d. / Silicon is a better conductor of electric current than sulfur is.
____ 9. At room temperature, none of the metals are
a. / soft. / c. / malleable.b. / liquids. / d. / gases.
____ 10. Which general statement does NOT apply to metals?
a. / Most metals are ductile.b. / Most metals are malleable.
c. / Most metals are brittle.
d. / Most metals are good conductors of electric current.
____ 11. Group 7A of the periodic table contains the
a. / most reactive nonmetals. / c. / least reactive nonmetals.b. / most reactive metals. / d. / least reactive metals.
____ 12. Two highly reactive elements in Period 2 are the metal lithium and the
a. / metalloid arsenic. / c. / nonmetal fluorine.b. / nonmetal selenium. / d. / nonmetal krypton.
____ 13. Atoms of the most reactive elements tend to have
a. / one or seven valence electrons. / c. / four or five valence electrons.b. / eight valence electrons. / d. / no valence electrons.
____ 14. As you move from left to right across a period, the number of valence electrons
a. / increases. / c. / increases and then decreases.b. / stays the same. / d. / decreases.
____ 15. Compared with Group 2A elements, Group 6A elements have
a. / more atoms in the ground state. / c. / more isotopes.b. / more valence electrons. / d. / fewer valence electrons.
____ 16. The tendency of an element to react is closely related to
a. / its atomic mass.b. / attractions between its atoms.
c. / the number of valence electrons in atoms of the element.
d. / the ratio of protons to neutrons in atoms of the element.
____ 17. A member of the boron family has three valence electrons, while a member of the nitrogen family has
a. / none. / c. / four.b. / five. / d. / three.
____ 18. Which statement is NOT true about the elements fluorine, chlorine, and iodine?
a. / They are all halogens. / c. / They are similar to noble gases.b. / They react easily with metals. / d. / They are all nonmetals.
____ 19. Which of the following Group 1A elements is the most reactive?
a. / Cs (cesium) / c. / K (potassium)b. / Li (lithium) / d. / Na (sodium)
____ 20. Which of the following Group 7A elements is the most reactive?
a. / Cl (chlorine) / c. / F (fluorine)b. / I (iodine) / d. / Br (bromine)
____ 21. Among the alkali metals, the tendency to react with other substances
a. / does not vary among the members of the group.b. / increases from top to bottom within the group.
c. / varies in an unpredictable way within the group.
d. / decreases from top to bottom within the group.
____ 22. Which of the following gases emit colors when an electric current is applied?
a. / hydrogen and helium / c. / fluorine and chlorineb. / argon and krypton / d. / oxygen and nitrogen
____ 23. To keep them from reacting, some highly reactive elements are stored in
a. / water. / c. / liquid mercury.b. / pure oxygen. / d. / argon.
____ 24. Which element is found in nature only in compounds?
a. / sodium / c. / oxygenb. / helium / d. / nitrogen
____ 25. Which element is found in most of the compounds in your body except for water?
a. / iodine / c. / ironb. / potassium / d. / carbon
Integrated Science Chapter 5 PRETEST
Answer Section
MULTIPLE CHOICE
1. ANS: D PTS: 1 DIF: L2 OBJ: 5.1.1
2. ANS: D PTS: 1 DIF: L1 OBJ: 5.1.1
3. ANS: B PTS: 1 DIF: L1 OBJ: 5.2.1
4. ANS: B PTS: 1 DIF: L2 OBJ: 5.2.1
5. ANS: D PTS: 1 DIF: L2 OBJ: 5.2.2
6. ANS: D PTS: 1 DIF: L1 OBJ: 5.2.2
7. ANS: B PTS: 1 DIF: L1 OBJ: 5.2.3
8. ANS: D PTS: 1 DIF: L1 OBJ: 5.2.3
9. ANS: D PTS: 1 DIF: L2 OBJ: 5.2.3
10. ANS: C PTS: 1 DIF: L2 OBJ: 5.2.3
11. ANS: A PTS: 1 DIF: L1 OBJ: 5.2.4
12. ANS: C PTS: 1 DIF: L2 OBJ: 5.2.4
13. ANS: A PTS: 1 DIF: L2 OBJ: 5.3.1
14. ANS: A PTS: 1 DIF: L1 OBJ: 5.3.1
15. ANS: B PTS: 1 DIF: L1 OBJ: 5.3.1
16. ANS: C PTS: 1 DIF: L1 OBJ: 5.3.1
17. ANS: B PTS: 1 DIF: L2 OBJ: 5.3.1
18. ANS: C PTS: 1 DIF: L2 OBJ: 5.3.1
19. ANS: A PTS: 1 DIF: L1 OBJ: 5.3.2
20. ANS: C PTS: 1 DIF: L1 OBJ: 5.3.2
21. ANS: B PTS: 1 DIF: L2 OBJ: 5.3.2
22. ANS: B PTS: 1 DIF: L1 OBJ: 5.3.3
23. ANS: D PTS: 1 DIF: L2 OBJ: 5.3.3
24. ANS: A PTS: 1 DIF: L2 OBJ: 5.3.3
25. ANS: D PTS: 1 DIF: L1 OBJ: 5.3.3