Question 1

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

Accepted Answer

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

Question 2

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 gases 
A) Transition metals 
B) Halogens 
C) Alkali metals 
D) Alkaline earth metals 
E) Noble gases

Question 3

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

Question 4

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. 
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.

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

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. 
A) metalloids. 
B) a period. 
C) noble gases. 
D) a group. 
E) nonmetals.

Question 7

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 nucleus 
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 nucleus

Question 8

Which of these elements is chemically similar to magnesium?

Accepted Answer

A) Sulfur 
B) Calcium 
C) Iron 
D) Nickel 
E) Potassium 
A) Sulfur 
B) Calcium 
C) Iron 
D) Nickel 
E) Potassium

Question 9

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

Accepted Answer

A) True 
 B)False

Question 10

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 neutrons 
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 neutrons

Question 11

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

Accepted Answer

A) Ba 
B) K 
C) Sc 
D) Na 
E) Rb 
A) Ba 
B) K 
C) Sc 
D) Na 
E) Rb

Question 12

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 P 
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 P

Question 13

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

Question 14

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

Question 15

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

Accepted Answer

A) Iridium 
B) Platinum 
C) Palladium 
D) Selenium 
E) Magnesium 
A) Iridium 
B) Platinum 
C) Palladium 
D) Selenium 
E) Magnesium

Question 16

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 = 14 
A) Nitrogen, N, Z = 7 
B) Phosphorus, P, Z = 15 
C) Arsenic, As, Z = 33 
D) Thallium, Tl, Z = 81 
E) Silicon, Si, Z = 14

Question 17

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

Question 18

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, 116 
A) 35, 46, 81 
B) 35, 81, 46 
C) 81, 46, 35 
D) 46, 81, 35 
E) 35, 81, 116

Question 19

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) Prediction 
A) Law 
B) Hypothesis 
C) Theory 
D) Phenomena 
E) Prediction

Question 20

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

Accepted Answer

A) magnesium 
B) sodium 
C) sulfur 
D) chlorine 
E) iron 
A) magnesium 
B) sodium 
C) sulfur 
D) chlorine 
E) iron

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

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

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

Two isotopes of an element differ only in their

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

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?

Which of these elements is chemically similar to magnesium?

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

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

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

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

Which of the following is a nonmetal?

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

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

Which of the following is a metal?

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

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.

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

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

Electrons and the Periodic Table

Compounds and Chemical Bonds

How Chemists Use Numbers

The Mole and Chemical Formulas

Molecular Shape

Solids, Liquids, and Phase Changes

Gases

Physical Properties of Solutions

Chemical Reactions and Chemical Equations

Using Balanced Chemical Equations

Acids and Bases

Equilibrium

Organic Chemistry

Biochemistry

Nuclear Chemistry

Electrochemistry

Filters

Exam 1: Atoms and Elements

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

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

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

Two isotopes of an element differ only in their

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

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?

Which of these elements is chemically similar to magnesium?

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

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

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

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

Which of the following is a nonmetal?

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

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

Which of the following is a metal?

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

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.

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

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

Electrons and the Periodic Table

Compounds and Chemical Bonds

How Chemists Use Numbers

The Mole and Chemical Formulas

Molecular Shape

Solids, Liquids, and Phase Changes

Gases

Physical Properties of Solutions

Chemical Reactions and Chemical Equations

Using Balanced Chemical Equations

Acids and Bases

Equilibrium

Organic Chemistry

Biochemistry

Nuclear Chemistry

Electrochemistry

Filters