Question 1

Which of the following is a nonmetal?

Accepted Answer

A)  Lithium, Li, Z = 3
B)  Bromine, Br, Z = 35
C)  Mercury, Hg, Z = 80
D)  Bismuth, Bi, Z = 83
E)  Sodium, Na, Z = 11F) A) and B)
G) C) and D)

Question 2

What element is represented by X in the atomic symbol notation ?

Accepted Answer

A)  Iridium
B)  Platinum
C)  Palladium
D)  Selenium
E)  MagnesiumF) A) and B)
G) A) and E)

Question 3

When applying the scientific method, it is important to avoid any form of hypothesis.

Accepted Answer

A) True 
 B)False

Question 4

Which of these elements is chemically similar to magnesium?

Accepted Answer

A)  Sulfur
B)  Calcium
C)  Iron
D)  Nickel
E)  PotassiumF) All of the above
G) B) and C)

Question 5

Two isotopes of an element differ only in their

Accepted Answer

A)  symbol.
B)  atomic number.
C)  atomic mass.
D)  number of protons.
E)  number of electrons.F) B) and E)
G) A) and C)

Question 6

The elements in a column of the periodic table are known as

Accepted Answer

A)  metalloids.
B)  a period.
C)  noble gases.
D)  a group.
E)  nonmetals.F) None of the above
G) A) and E)

Question 7

Determine the number of protons, electrons, and neutrons for the isotope gold-118.The symbol for gold is Au.

Accepted Answer

A)  118 protons, 118 electrons, 79 neutrons
B)  79 protons, 79 electrons, 118 neutrons
C)  79 protons, 79 electrons, 39 neutrons
D)  118 protons, 118 electrons, 39 neutrons
E)  79 protons, 39 electrons, 118 neutronsF) A) and D)
G) B) and E)

Question 8

C(graphite)  and C(diamond)  are examples of:

Accepted Answer

A)  isotopes of carbon.
B)  allotropes of carbon.
C)  the law of definite proportions.
D)  different carbon ions.E) A) and C)
F) B) and C)

Question 9

Which of the following is a metal?

Accepted Answer

A)  Nitrogen, N, Z = 7
B)  Phosphorus, P, Z = 15
C)  Arsenic, As, Z = 33
D)  Thallium, Tl, Z = 81
E)  Silicon, Si, Z = 14F) A) and B)
G) None of the above

Question 10

The elements in Group 2A are known by what name?

Accepted Answer

A)  Transition metals
B)  Halogens
C)  Alkali metals
D)  Alkaline earth metals
E)  Noble gasesF) A) and C)
G) C) and D)

Question 11

Which one of the following statements about atoms and subatomic particles is correct?

Accepted Answer

A)  Rutherford discovered the atomic nucleus by bombarding gold foil with electrons
B)  The proton and the neutron have identical masses.
C)  The neutron's mass is equal to that of a proton plus an electron.
D)  A neutral atom contains equal numbers of protons and electrons.
E)  An atomic nucleus contains equal numbers of protons and neutrons.F) None of the above
G) B) and D)

Question 12

Which of these scientists developed the nuclear model of the atom?

Accepted Answer

A)  John Dalton
B)  Robert Millikan
C)  J.J.Thomson
D)  Henry Moseley
E)  Ernest RutherfordF) B) and D)
G) C) and E)

Question 13

Which element would be expected to have properties similar to calcium?

Accepted Answer

A)  Ba
B)  K
C)  Sc
D)  Na
E)  RbF) D) and E)
G) A) and D)

Question 14

A row of the periodic table is called a(n)

Accepted Answer

A)  group.
B)  period.
C)  isotopic mixture.
D)  family.
E)  subshell.F) A) and C)
G) B) and E)

Question 15

What elements and groups have properties that are most similar to those of chlorine?

Accepted Answer

A)  F, Br, I, and nonmetals in Group 7A
B)  Cl, K, C, and metals in Group 1B
C)  N, P, As, and lanthanides
D)  He, Ne, Xe, and nonmetals in Group 7A
E)  O, S, and PF) C) and D)
G) B) and E)

Question 16

What is the term used for findings that are summarized based on a pattern or trend?

Accepted Answer

A)  Law
B)  Hypothesis
C)  Theory
D)  Phenomena
E)  PredictionF) None of the above
G) D) and E)

Question 17

Bromine is the only nonmetal that is a liquid at room temperature.Consider the isotope bromine-81,  .Select the combination which lists the correct atomic number, number of neutrons, and mass number, respectively.

Accepted Answer

A)  35, 46, 81
B)  35, 81, 46
C)  81, 46, 35
D)  46, 81, 35
E)  35, 81, 116F) B) and C)
G) A) and B)

Question 18

Rutherford bombarded gold foil with alpha (α)  particles and found that a small percentage of the particles were deflected.Which of the following was not accounted for by the model he proposed for the structure of the atom?

Accepted Answer

A)  the small size of the nucleus
B)  the charge on the nucleus
C)  the total mass of the atom
D)  the existence of protons
E)  the presence of electrons outside the nucleusF) A) and E)
G) D) and E)

Question 19

Which of these elements exhibits chemical behavior similar to that of potassium?

Accepted Answer

A)  magnesium
B)  sodium
C)  sulfur
D)  chlorine
E)  ironF) B) and D)
G) A) and E)

Question 20

Lithium forms compounds which are used in dry cells, storage batteries, and in high-temperature lubricants.It has two naturally occurring isotopes, 6Li (isotopic mass = 6.015123 amu)  and 7Li (isotopic mass = 7.016005 amu) .Lithium has an atomic mass of 6.9412 amu.What is the percent abundance of lithium-6?

Accepted Answer

A)  92.53%
B)  86.65%
C)  49.47%
D)  7.47%
E)  6.015%F) A) and B)
G) C) and D)

Exam 1: Atoms and Elements

The elements in Group 2A are known by what name?

Correct Answer
verified

Rutherford bombarded gold foil with alpha (α) particles and found that a small percentage of the particles were deflected.Which of the following was not accounted for by the model he proposed for the structure of the atom?

Correct Answer
verified

A row of the periodic table is called a(n)

Correct Answer
verified

The elements in a column of the periodic table are known as

Correct Answer
verified

Which of these elements is chemically similar to magnesium?

Correct Answer
verified

Which of these scientists developed the nuclear model of the atom?

Correct Answer
verified

Which of the following is a nonmetal?

Correct Answer
verified

Bromine is the only nonmetal that is a liquid at room temperature.Consider the isotope bromine-81, .Select the combination which lists the correct atomic number, number of neutrons, and mass number, respectively.

Correct Answer
verified

Which of the following is a metal?

Correct Answer
verified

C(graphite) and C(diamond) are examples of:

Correct Answer
verified

Correct Answer
verified

What elements and groups have properties that are most similar to those of chlorine?

Correct Answer
verified

What is the term used for findings that are summarized based on a pattern or trend?

Correct Answer
verified

Which element would be expected to have properties similar to calcium?

Correct Answer
verified

What element is represented by X in the atomic symbol notation ?

Correct Answer
verified

Two isotopes of an element differ only in their

Correct Answer
verified

Determine the number of protons, electrons, and neutrons for the isotope gold-118.The symbol for gold is Au.

Correct Answer
verified

When applying the scientific method, it is important to avoid any form of hypothesis.

Correct Answer
verified

Which one of the following statements about atoms and subatomic particles is correct?

Correct Answer
verified

Which of these elements exhibits chemical behavior similar to that of potassium?

Correct Answer
verified

Exam 1: Atoms and Elements

The elements in Group 2A are known by what name?

Correct AnswerverifiedShow Answer

Rutherford bombarded gold foil with alpha (α) particles and found that a small percentage of the particles were deflected.Which of the following was not accounted for by the model he proposed for the structure of the atom?

Correct AnswerverifiedShow Answer

A row of the periodic table is called a(n)

Correct AnswerverifiedShow Answer

The elements in a column of the periodic table are known as

Correct AnswerverifiedShow Answer

Which of these elements is chemically similar to magnesium?

Correct AnswerverifiedShow Answer

Which of these scientists developed the nuclear model of the atom?

Correct AnswerverifiedShow Answer

Which of the following is a nonmetal?

Correct AnswerverifiedShow Answer

Bromine is the only nonmetal that is a liquid at room temperature.Consider the isotope bromine-81, .Select the combination which lists the correct atomic number, number of neutrons, and mass number, respectively.

Correct AnswerverifiedShow Answer

Which of the following is a metal?

Correct AnswerverifiedShow Answer

C(graphite) and C(diamond) are examples of:

Correct AnswerverifiedShow Answer

Correct AnswerverifiedShow Answer

What elements and groups have properties that are most similar to those of chlorine?

Correct AnswerverifiedShow Answer

What is the term used for findings that are summarized based on a pattern or trend?

Correct AnswerverifiedShow Answer

Which element would be expected to have properties similar to calcium?

Correct AnswerverifiedShow Answer

What element is represented by X in the atomic symbol notation ?

Correct AnswerverifiedShow Answer

Two isotopes of an element differ only in their

Correct AnswerverifiedShow Answer

Determine the number of protons, electrons, and neutrons for the isotope gold-118.The symbol for gold is Au.

Correct AnswerverifiedShow Answer

When applying the scientific method, it is important to avoid any form of hypothesis.

Correct AnswerverifiedShow Answer

Which one of the following statements about atoms and subatomic particles is correct?

Correct AnswerverifiedShow Answer

Which of these elements exhibits chemical behavior similar to that of potassium?

Correct AnswerverifiedShow Answer

Correct Answer
verified

Correct Answer
verified

Correct Answer
verified

Correct Answer
verified

Correct Answer
verified

Correct Answer
verified

Correct Answer
verified

Correct Answer
verified

Correct Answer
verified

Correct Answer
verified

Correct Answer
verified

Correct Answer
verified

Correct Answer
verified

Correct Answer
verified

Correct Answer
verified

Correct Answer
verified

Correct Answer
verified

Correct Answer
verified

Correct Answer
verified

Correct Answer
verified