First Nine weeks Study Guide
Multiple Choice
Identify the letter of the choice that best completes the statement or answers the question.
____
____
____
____
1. Which particles in atoms have a negative electric charge?
electrons
2. One example of a chemical change is
burning wood.
3. Substances that CANNOT be broken down chemically into other substances are
elements
4. The measurement of how much matter an object contains is its
mass.
____
5. The density of a block of wood with a volume of 50 cubic centimeters and a mass of 100 grams is
2 g/cm3
____
6. What holds atoms together in a molecule?
chemical bonds
____
7. In the laboratory, volumes of liquid are usually measured with a(n)
graduated cylinder.
____
8. Anything that has mass and takes up space is called
matter
____
9. How would you calculate the density of an object?
Divide its mass by its volume.
____ 10. Which of the following terms means that metals can be pulled into thin strands or wires?
ductile
____ 11. A physical property may be investigated by
. melting ice
____ 12. A physical change occurs when a
glue gun melts a glue stick.
____ 13. What is the atomic number for aluminum from the figure above?
`13.
____ 14. Which statement is NOT true of most metalloids?
They are generally unreactive.
____ 15. A certain compound is composed of elements G and H. It always has the same mass ratio of G to H because
a. all atoms have the same mass. b. any excess of G or H will be destroyed. c. G and H have characteristic
masses. d. G and H have identical masses.
____ 16. Who first recognized that the ratio of the number of atoms that combine is the same as the ratio of the masses
that combine?
John Dalton
____ 17. The principles of atomic theory recognized today were conceived by
Dalton.
____ 18. According to Dalton's atomic theory, atoms
of each element are identical in size, mass, and other properties.
____ 19. The discovery of the electron resulted from experiments using
. gold foil
____ 20. Who discovered the nucleus by bombarding gold foil with positively charged particles and noting that some
particles were widely deflected?
. Rutherford
____ 21. In Rutherford's experiments, most of the particles
passed through the foil.
____ 22. Because a few positively charged particles bounced back from the foil, Rutherford concluded that such
particles were
. repelled by densely packed regions of positive charge.
____ 23. A positively charged particle with mass 1g is a(n)
. proton.
____ 24. A nuclear particle that has about the same mass as a proton, but with no electrical charge, is called a(n)
neutron.
____ 25. The nucleus of an atom has all of the following characteristics EXCEPT that it
. contains nearly all of the atom's volume.
____ 26. Most of the volume of an atom is occupied by the
electron cloud.
____ 27. Zn-66 (atomic number 30) has
36 neutrons
____ 28. Neon-22 contains 12 neutrons.
10 protons.
____ 29. Argon (atomic number 18 and mass number 40) has ____ protons in its nucleus.
18
____ 30. The main energy level that can hold only two electrons is the
. first
____ 31. The number of electrons in the highest energy level of the argon atom (atomic number 18) is
. 8.
____ 32. In developing his periodic table, Mendeleev listed on cards each element's name, atomic mass, and
. properties.
____ 33. Mendeleev's table was called periodic because the properties of the elements
occurred at repeated intervals called periods.
____ 34. Argon, krypton, and xenon are
noble gases.
____ 35. In the modern periodic table, elements are ordered according to
increasing atomic number
____ 36. A horizontal row of blocks in the periodic table is called a(n)
period
____ 37. The elements that border the zigzag line in the periodic table are
metalloids.
____ 38. Hydrogen is placed separately from other elements in the periodic table because it
. has many unique properties.
____ 39. Bromine, atomic number 35, belongs to Group 17. How many electrons does bromine have in its outermost
energy level?
.7
____ 40. The number of valence electrons in Group 17 elements is
. 7.
____ 41. The number of valence electrons in Group 2 elements is
. 2.
____ 42. How does nuclear fusion create new elements inside stars?
Small nuclei combine to form larger nuclei.
____ 43. The sun is made up mostly of
a. hydrogen.
____ 44. The elements in a column of the periodic table
a. have similar properties
____ 45. The two most common alkaline earth metals are
. calcium and magnesium.
First Nine weeks Study Guide
Answer Section
MULTIPLE CHOICE
1. ANS:
STO:
2. ANS:
STO:
3. ANS:
4. ANS:
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5. ANS:
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7. ANS:
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8. ANS:
9. ANS:
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26. ANS:
27. ANS:
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29. ANS:
30. ANS:
31. ANS:
32. ANS:
33. ANS:
34. ANS:
A
DIF: L1
P.8.2, P.8.2.2
B
DIF: L2
P.8.4, P.8.7.1
A
DIF: L1
C
DIF: L1
P.8.1.3
A
DIF: L3
P.8.1.3
D
DIF: L2
D
DIF: L2
P.8.1.3
A
DIF: L1
B
DIF: L2
P.8.1.3
C
DIF: L1
P.8.3.1, P.8.3.2, P.8.5
A
DIF: II
D
DIF: II
A
DIF: III
C
DIF: I
C
DIF: II
C
DIF: I
C
DIF: I
C
DIF: I
B
DIF: I
A
DIF: I
B
DIF: I
C
DIF: II
A
DIF: I
B
DIF: I
D
DIF: I
C
DIF: I
C
DIF: III
D
DIF: III
D
DIF: III
A
DIF: I
D
DIF: II
D
DIF: I
B
DIF: I
B
DIF: I
REF: p. PS.104
OBJ: PS.4.1.1
REF: p. PS-52
OBJ: PS.2.3.2
REF: p. PS-38
REF: p. PS-45
OBJ: PS.2.1.2
OBJ: PS.2.2.1
REF: p. PS-47
OBJ: PS.2.2.3
REF: p. PS-39
REF: p. PS-46
OBJ: PS.2.1.2
OBJ: PS.2.2.2
REF: p. PS-34
REF: p. PS-47
OBJ: PS.2.1.1
OBJ: PS.2.2.3
REF: p. PS-175
OBJ: PS.5.4.3
OBJ:
OBJ:
OBJ:
OBJ:
OBJ:
OBJ:
OBJ:
OBJ:
OBJ:
OBJ:
OBJ:
OBJ:
OBJ:
OBJ:
OBJ:
OBJ:
OBJ:
OBJ:
OBJ:
OBJ:
OBJ:
OBJ:
OBJ:
OBJ:
1-2.1
1-2.2
3-3.2
1-3.4
3-1.1
3-1.2
3-1.2
3-1.2
3-2.1
3-2.2
3-2.2
3-2.2
3-2.3
3-2.3
3-2.3
3-2.4
3-3.3
3-3.3
3-3.3
4-3.1
4-3.3
5-1.1
5-1.1
5-1.2
35.
36.
37.
38.
39.
40.
41.
42.
ANS:
ANS:
ANS:
ANS:
ANS:
ANS:
ANS:
ANS:
STO:
43. ANS:
STO:
44. ANS:
STO:
45. ANS:
STO:
C
DIF: I
B
DIF: I
C
DIF: I
D
DIF: I
A
DIF: II
A
DIF: I
A
DIF: I
D
DIF: L2
P.8.2
A
DIF: L1
P.8.2
A
DIF: L3
P.8.3, P.8.3.1, P.8.3.2
D
DIF: L1
P.8.3, P.8.3.1, P.8.3.2
OBJ:
OBJ:
OBJ:
OBJ:
OBJ:
OBJ:
OBJ:
REF:
5-1.2
5-1.4
5-2.2
5-2.2
5-2.3
5-3.3
5-3.3
p. PS-116
OBJ: PS.4.2.3
REF: p.PS-116
OBJ: PS.4.2.3
REF: p. PS-114
OBJ: PS.4.2.2
REF: p. PS-121
OBJ: PS.4.3.2