Download Ch 2 Test Review part 2

Name: Class: Date: Ch 2 Test - Part 2
Indicate the answer choice that best completes the statement or answers the question.
1. In general, metals are ____.
a. brittle
b. poor conductors of heat
c. good conductors of heat
d. poor conductors of electricity
2. Helium and most nonmetals are found in which area of the periodic table?
a. On the right side.
b. In the bottom rows.
c. On the left-most side.
d. In the middle column of the periodic table.
3. Which elements have properties of both metals and nonmetals?
a. gases
b. metalloids
c. nonmetals
d. metals
4. A single horizontal portion of the periodic table, as shown below, is called _____.
a. a group
c. a method
b. a class
d. a period
5. Which location on the periodic table contains only metalloids?
a. the area between metals and nonmetals
b. the area to the left of the metals
c. the area beneath metals and nonmetals
d. the area between the halogens and the noble gases
6. How are the elements arranged on the periodic table?
a. in rows and columns according to their properties
b. in one long row according to atomic mass
c. in rows and columns alphabetically
7. An atom with _____ valence electrons is most stable.
a. eight
b. two
c. four
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Name: Class: Date: Ch 2 Test - Part 2
8. Elements found on the far right of the periodic table in Group 18, are referred to as _____ and are chemically
stable.
a. noble gases
b. metalloids
c. nonmetals
d. metals
9. What is meant by periodic in Periodic Table?
a. the elements occur more than once
b. the table is only good for so long
c. the table can be changed as needed
d. the table has repeated cycles
10. What is the group number for elements that have a stable number of electrons in their outer energy level?
a. 17
b. 18
c. 2
d. 1
11. Why do the noble gases NOT form compounds readily?
a. Their outer energy levels have 8 valence electrons.
b. They have empty outer energy levels.
c. They have seven electrons in the outer energy levels.
d. They have no electrons.
12. The energy levels of an atom are occupied by ____.
a. electrons
b. ions
c. protons
d. neutrons
13. Most of the mass of an atom is found in its ____.
a. electron cloud
b. atomic number
c. nucleus
d. mass number
14. Which best describes a valence electron?
a. an outermost electron that participates in chemical bonding
b. an inner electron that does not participate in chemical bonding
c. an outermost electron that does not participate in chemical bonding
d. an inner electron that participates in chemical bonding
15. Which group contains only metals?
a. carbon, potassium, silver
b. sodium, gold, lithium
c. copper, oxygen, sulfur
16. In an atom, electrons ____.
a. are located in the nucleus
c. are paired with neutrons
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b. travel outside the nucleus
d. are always in the same place in an atom
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Name: Class: Date: Ch 2 Test - Part 2
17. Which statement describes how melting point changes across a period on the periodic table?
a. Melting point gradually decreases.
b. Melting point gradually increases.
c. Melting point decreases and then increases.
d. Melting point increases and then decreases.
18. Which of the following categories of elements represents almost three-fourths of the periodic table?
a. gases
b. metalloids
c. nonmetals
d. metals
19. The place of an element in the modern periodic table is determined by its _____.
a. chemical activity
b. density
c. atomic mass
d. atomic number
20. Elements on the periodic table are arranged in rows and columns according to their _____.
a. name
b. properties
c. weight
21. Where are metals on the periodic table?
a. on the left side and in the middle
b. on the right side and in the middle
c. on the bottom and on the top
22. Which property increases and then decreases across a period of the periodic table?
a. melting point
b. atomic mass
c. conductivity
23. How many dots are shown in the electron dot diagram for calcium, element number 20?
a. eight
b. two
c. one
d. twenty
24. On most periodic tables, an element’s key includes the element’s chemical symbol, atomic number, and _____.
a. atomic mass
b. boiling point
c. density
25. How does an element in row 3 of the periodic table differ from an element in row 6?
a. The element in row 6 is always a gas.
b. The element in row 3 is always a gas.
c. The element in row 3 has more mass.
d. The element in row 6 has more mass.
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Name: Class: Date: Ch 2 Test - Part 2
Answer Key
1. c
2. a
3. b
4. d
5. a
6. a
7. a
8. a
9. d
10. b
11. a
12. a
13. c
14. a
15. b
16. b
17. d
18. d
19. d
20. b
21. a
22. a
23. b
24. a
25. d
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