Download Ch 4 and Ch 5 Study Guide (ICP) Multiple Choice Identify the choice

Ch 4 and Ch 5 Study Guide (ICP)
Multiple Choice
Identify the choice that best completes the statement or answers the question.
____
____
1. The atomic number of an atom denotes the number of
a. neutrons
c.
b. isotopes
d.
electrons
protons
2. Protons compared in size to neutrons are
a. unknown at this point
b. much larger
almost identical
much smaller
c.
d.
____
3. An iron atom has a mass number of 56. Its atomic number is 26. How many neutrons does the iron atom have?
a. 82
c. It has no neutrons
b. 30
d. 56
____
4. Two different isotopes of an element have different
a. numbers of neutrons
c.
b. atomic numbers
d.
numbers of electrons
numbers of protons
____
5. What is the mass number of an element that has 19 protons,
19 electrons, and 20 neutrons?
a. 20
c. 19
b. 58
d. 39
____
6. How many grams are in one mole of silver?
a. 60.25
b. 47.001
c.
d.
107.87
94.0
7. What is the mass of 4.3 moles of Tin
a. 118.71
b. 510.5
c.
d.
439.23
225.32
____
____
8. You have 138.5 grams of Cobalt. How many moles do you have?
a. 2.35
c. 8.46
b. 9.32
d. 6.25
____
9. How much effect do commonly found isotopes have on the average atomic mass of an element?
a. no effect on atomic mass
c. same as rarely found isotopes
b. more than rarely found isotopes
d. less than rarely found isotopes
____
____
____
____
10. The charge of an atom is
a. negative
b. positive
c.
d.
unbalanced
neutral
11. The nucleus of an atom is composed of
a. protons and electrons
b. protons, neutrons, and electrons
c.
d.
neutrons and electrons
protons and neutrons
12. An atom that has lost or gained electrons is called
a. an isotope
b. subatomic particle
c.
d.
an ion
neutrino
13. Dalton’s atomic theory stated that every element was made of atoms that could not be subdivided, atoms of the same
element are alike, and
a.
b.
atoms are made of protons, neutrons, and
electrons.
the nucleus is the center of the atom.
c.
d.
atoms of different elements could form to join
compounds.
atoms are constantly in motion.
____
14. Which statement about the atom’s nucleus is correct?
a.
b.
____
____
The precise location of electrons cannot be
predicted.
23.4 g
2.34 kg
d.
Electrons can be found only in certain energy
levels.
Electrons are most likely to be found in
orbitals.
orbital
valence electron
c.
d.
photon
excited state
c.
d.
photon
excited state
c.
d.
photon
excited state
c.
d.
photon
excited state
19. Where electrons are likely to be found in an atom
orbital
valence electron
20. Unit or quantum of light
orbital
valence electron
21. When an electron gains energy it moves to a(n)
orbital
valence electron
22. Magnesium (Mg) is located to the right of sodium (Na) because Mg has
fewer protons.
no neutrons.
c.
d.
no protons
more protons.
23. As you move from left to right across the periodic table, elements
a.
b.
____
a total of eight protons and neutrons.
a total of eight neutrons and electrons.
18. This is found in the outer energy level of an atom
a.
b.
____
c.
d.
b.
a.
b.
____
2.34 g
234 g
Electrons can be found between energy levels. c.
a.
b.
____
c.
d.
a.
a.
b.
____
eight neutrons in its nucleus.
eight protons in its nucleus.
17. Which statement about the modern model of the atom is not true?
a.
b.
____
d.
The nucleus is made of protons and neutrons
and has a positive charge.
The nucleus is made of electrons and has a
negative charge.
16. You have 4.50 moles of chromium. What is the mass in grams of this amount of chromium?
a.
b.
____
c.
15. Oxygen’s atomic number is 8. This means that an oxygen atom has
a.
b.
____
The nucleus is made of protons and neutrons
and has a negative charge.
The nucleus is made of electrons and has a
positive charge.
become less metallic.
have a lower atomic number.
24. Each column of the periodic table is
c.
d.
have a lower atomic weight.
become more metallic.
a.
b.
____
a higher atomic number.
a higher group number.
color
number of neutrons
c.
d.
atomic weight
electron arrangement
valence electrons.
neutral electrons
c.
d.
inner electrons.
total electrons.
metals.
nonmetals.
c.
d.
isotopes.
c.
d.
become charged
All of the above
ions.
be highly reactive.
form ions.
inert gases.
alkali metals.
c.
d.
radioactive isotopes.
semiconductors
c.
d.
metalloids
semiconductors
32. Most elements are
a.
b.
____
c.
d.
31. The three main groups of elements are metals, nonmetals, and
a.
b.
____
fewer protons.
a lower atomic number.
30. Elements that have one valence electron tend to
a.
b.
____
at every tenth element.
at regular intervals.
29. Atoms that gain or lose electrons are called
a.
b.
____
c.
d.
28. Elements that belong to the same group have the same number of
a.
b.
____
to the left of each other.
to the right of each other.
27. What is the location of elements in the periodic table related to?
a.
b.
____
an isotope.
a period.
26. As you move from up to down in a column of the periodic table, elements have
a.
b.
____
c.
d.
25. The periodic law states that elements that have similar properties appear
a.
b.
____
an element.
a group.
metals.
nonmetals.
33. Most elements on the left side of the periodic table are
a.
b.
semiconductors.
metals.
c.
d.
nonmetals.
metalloids
____
34. Most nonmetals are
a.
b.
____
____
number of valence electrons
atomic number.
atomic symbols
atomic sizes.
c.
d.
atomic weights.
chemical properties.
It conducts heat
It conducts electricity.
c.
d.
It is a soft and shiny metal.
It has one valence electron
They are highly reactive.
They exist as single atoms.
c.
d.
They belong to Group 18.
They are nonmetals
39. When can semiconductors conduct heat and electricity?
a.
b.
____
c.
d.
38. Which of the following is not true of noble gases?
a.
b.
____
average atomic mass.
number of protons.
37. How do you know that potassium, an alkali metal, is highly reactive?
a.
b.
____
metalloids.
shiny.
36. Elements in an element family have similar
a.
b.
____
c.
d.
35. Each element in an element family shares the same
a.
b.
____
brittle.
good conductors.
under all conditions
under almost all conditions
40. What is the highest energy level used in Ta?
a. 3
b. 4
c.
d.
under some conditions
under no conditions
c.
d.
5
6
41. What is the highest energy level used in In and how many valence electrons?
a. 4,10
c. 5,2
b. 5,1
d. 5,3
True/False
Indicate whether the statement is true or false.
____
42. Positive charges attract positive charges ( and negative attract negative) with a force call the electric force.
____
43. All atoms of an element have the same number of neutrons.
____
44. Mass number does not have any units, and it is always a whole number.
____
45. All atoms of an element have the same number of protons.
____
46. Atoms of the same element always have the same atomic number, but can have different mass numbers.
____
47. All atoms of an element have the same number of electrons.
Completion
Complete each statement.
48. Thomson’s cathode-ray tube experiment supported the theory that _______________________ exist inside an atom.
49. Rutherford’s gold-foil experiment revealed that an atom’s positive charge is concentrated in the atom’s
_______________________.
50. The first person who suggested that matter was made up of atoms was the Greek philosopher
_______________________.
51. Neutrons and protons are found in the _______________________ of an atom.
52. An atom of potassium has a mass number of 39 and an atomic number of 19. It therefore has
_______________________ neutrons in its nucleus.
53. When an atom gains or loses energy, _______________________ jump between energy levels.
54. An electron that gains energy enters an excited state and absorbs a particle of light called a(n)
______________________.
55. The chemical properties of an atom are determined by _______________________, which are located in the atom’s
outer energy level.
56. The nucleus of an atom has a(n) _______________________ electric charge.
57. Isotopes of an element have the same atomic _______________________ but different atomic
_______________________.
Matching
a.
b.
c.
d.
e.
alkali metal
noble gas
metalloids
mass number
alkaline-earth metal
f.
g.
h.
i.
j.
periodic law
isotope
cation
law of definite proportions
photon
____
58. What is another name for semiconductors?
____
59. What is a positive ion called?
____
60. One of the elements of Group 1 of the periodic table
____
61. One of the elements of Group 2 of the periodic table
____
62. The number of protons and neutrons found in the nucleus
____
63. One of the elements of Group 18 of the periodic table
____
64. Law that states that the repeating chemical and physical properties of elements change periodically with the atomic
numbers of elements
____
65. What is a unit or quantum of light?
____
66. A chemical compound always contains the same elements in exactly the same proportions by weight or mass
____
67. An atom that has the same number of protons as other atoms of the same element, but has a different number of
neutrons
Element
Symbol
Atomic
Number
Atomic
Mass
Period
Group
Electron Configuration
1s2 2s2 2p6 3s2 3p6
4s2
Ruthenium
5
15
Ta
87.62
1s2 2s2 2p6 3s2 3p6
4s2 3d10 4p6 5s2 4d10
5p6 6s2 4f14 5d10 6p2
15