Question 1

What is the chemical symbol for titanium?

Accepted Answer

A) Th 
B) Ti 
C) Tl 
D) Tm 
A) Th 
B) Ti 
C) Tl 
D) Tm

Question 2

Which of the following statements about isotopes is true?

Accepted Answer

A) Isotopes of the same element differ only in the number of electrons they contain. 
B) An isotope of an atom with a larger number of neutrons is larger than an isotope of the same atom that contains fewer neutrons. 
C) Isotopes of the same element have the same mass. 
D) Isotopes of the same element don't usually have the same properties. 
E) Some elements have 3 or more naturally occurring isotopes. 
A) Isotopes of the same element differ only in the number of electrons they contain. 
B) An isotope of an atom with a larger number of neutrons is larger than an isotope of the same atom that contains fewer neutrons. 
C) Isotopes of the same element have the same mass. 
D) Isotopes of the same element don't usually have the same properties. 
E) Some elements have 3 or more naturally occurring isotopes.

Question 3

Which of the following assumptions of Dalton's Atomic Theory are no longer valid?

Accepted Answer

A) Each element is composed of atoms. 
B) All atoms of a given element have the same mass and other properties that distinguish them from the atoms of other elements. 
C) Atoms combine in simple,whole-number ratios to form compounds. 
D) Atoms of one element cannot change into atoms of another element. 
A) Each element is composed of atoms. 
B) All atoms of a given element have the same mass and other properties that distinguish them from the atoms of other elements. 
C) Atoms combine in simple,whole-number ratios to form compounds. 
D) Atoms of one element cannot change into atoms of another element.

Question 4

Which of the following represent isotopes?
A:  X 
B:  X 
C:  X 
D:  X

Accepted Answer

A) A and B 
B) A and C 
C) A and D 
D) C and D 
A) A and B 
B) A and C 
C) A and D 
D) C and D

Question 5

What is the element symbol for an atom that has 5 protons and 6 neutrons?

Accepted Answer

A) B 
B) C 
C) H 
D) Na 
A) B 
B) C 
C) H 
D) Na

Question 6

Iodine belongs to the ________ group of the periodic table.

Accepted Answer

A) alkali metal 
B) alkaline earth metal 
C) halogen 
D) noble gas 
A) alkali metal 
B) alkaline earth metal 
C) halogen 
D) noble gas

Question 7

Which of the following contains the fewest atoms? You shouldn't need to do a calculation here.

Accepted Answer

A) 4.0 g Li 
B) 4.0 g Na 
C) 4.0 g Rb 
D) 4.0 g K 
E) 4.0 g Ca 
A) 4.0 g Li 
B) 4.0 g Na 
C) 4.0 g Rb 
D) 4.0 g K 
E) 4.0 g Ca

Question 8

How many phosphorus atoms are contained in 158 kg of phosphorus?

Accepted Answer

A) 3.07 × 1027 phosphorus atoms 
B) 2.95 × 1027 phosphorus atoms 
C) 3.25 × 1028 phosphorus atoms 
D) 1.18 × 1024 phosphorus atoms 
E) 8.47 × 1024 phosphorus atoms 
A) 3.07 × 1027 phosphorus atoms 
B) 2.95 × 1027 phosphorus atoms 
C) 3.25 × 1028 phosphorus atoms 
D) 1.18 × 1024 phosphorus atoms 
E) 8.47 × 1024 phosphorus atoms

Question 9

How many electrons does the Al3+ ion possess?

Accepted Answer

A) 16 
B) 10 
C) 6 
D) 0 
E) 13 
A) 16 
B) 10 
C) 6 
D) 0 
E) 13

Question 10

Calculate the mass (in ng)of 2.33 × 1020 atoms of oxygen.

Accepted Answer

A) 6.19 × 106 ng 
B) 1.62 × 107 ng 
C) 2.25 × 103 ng 
D) 3.73 × 106 ng 
E) 4.69 × 107 ng 
A) 6.19 × 106 ng 
B) 1.62 × 107 ng 
C) 2.25 × 103 ng 
D) 3.73 × 106 ng 
E) 4.69 × 107 ng

Question 11

Barium belongs to the ________ group of the periodic table.

Accepted Answer

A) alkali metal 
B) alkaline earth metal 
C) halogen 
D) noble gas 
A) alkali metal 
B) alkaline earth metal 
C) halogen 
D) noble gas

Question 12

In which of the following sets do all species have the same number of electrons?

Accepted Answer

A) F-,Ne,Mg2+ 
B) Ge,Se2-,Br- 
C) K+,Rb+,Cs+ 
D) Br,Br-,Br+ 
A) F-,Ne,Mg2+ 
B) Ge,Se2-,Br- 
C) K+,Rb+,Cs+ 
D) Br,Br-,Br+

Question 13

An ion has 8 protons,9 neutrons,and 10 electrons.The symbol for the ion is ________.

Accepted Answer

A) (17O2- ) 
B) (17O2+ ) 
C) (19F+ ) 
D) (19F- ) 
E) (17Ne2+ ) 
A) (17O2- ) 
B) (17O2+ ) 
C) (19F+ ) 
D) (19F- ) 
E) (17Ne2+ )

Question 14

Which of the following contains the most atoms? You shouldn't need to do a calculation here.

Accepted Answer

A) 10.0 g Ne 
B) 10.0 g He 
C) 10.0 g Ar 
D) 10.0 g Kr 
E) 10.0 g Mg 
A) 10.0 g Ne 
B) 10.0 g He 
C) 10.0 g Ar 
D) 10.0 g Kr 
E) 10.0 g Mg

Question 15

What species is represented by the following information?
P+ = 47 n° = 62 e- = 46

Accepted Answer

A) Ag+ 
B) Nd 
C) Pd 
D) Ag 
E) Pd+ 
A) Ag+ 
B) Nd 
C) Pd 
D) Ag 
E) Pd+

Question 16

How many moles of Cs are contained in 595 kg of Cs?

Accepted Answer

A) 2.23 × 102 moles Cs 
B) 4.48 × 103 moles Cs 
C) 7.91 × 104 moles Cs 
D) 1.26 × 103 moles Cs 
E) 5.39 × 102 moles Cs 
A) 2.23 × 102 moles Cs 
B) 4.48 × 103 moles Cs 
C) 7.91 × 104 moles Cs 
D) 1.26 × 103 moles Cs 
E) 5.39 × 102 moles Cs

Question 17

Which of the following elements is classified as a semimetal?

Accepted Answer

A) calcium 
B) boron 
C) fluorine 
D) uranium 
A) calcium 
B) boron 
C) fluorine 
D) uranium

Question 18

Predict the charge of the most stable ion of bromine.

Accepted Answer

A) 2+ 
B) 1+ 
C) 3+ 
D) 1- 
E) 2- 
A) 2+ 
B) 1+ 
C) 3+ 
D) 1- 
E) 2-

Question 19

How many iron atoms are contained in 354 g of iron?

Accepted Answer

A) 2.62 × 1025 Fe atoms 
B) 2.13 × 1026 Fe atoms 
C) 4.69 × 1024 Fe atoms 
D) 3.82 × 1024 Fe atoms 
E) 9.50 × 1022 Fe atoms 
A) 2.62 × 1025 Fe atoms 
B) 2.13 × 1026 Fe atoms 
C) 4.69 × 1024 Fe atoms 
D) 3.82 × 1024 Fe atoms 
E) 9.50 × 1022 Fe atoms

Question 20

Which of the following elements is a lanthinide?

Accepted Answer

A) U 
B) Pm 
C) Rf 
D) Po 
A) U 
B) Pm 
C) Rf 
D) Po

What is the chemical symbol for titanium?

Which of the following statements about isotopes is true?

Which of the following assumptions of Dalton's Atomic Theory are no longer valid?

Which of the following represent isotopes? A: X B: X C: X D: X

What is the element symbol for an atom that has 5 protons and 6 neutrons?

Iodine belongs to the ________ group of the periodic table.

Which of the following contains the fewest atoms? You shouldn't need to do a calculation here.

How many phosphorus atoms are contained in 158 kg of phosphorus?

How many electrons does the Al³⁺ion possess?

Calculate the mass (in ng)of 2.33 × 10²⁰atoms of oxygen.

Barium belongs to the ________ group of the periodic table.

In which of the following sets do all species have the same number of electrons?

An ion has 8 protons,9 neutrons,and 10 electrons.The symbol for the ion is ________.

Which of the following contains the most atoms? You shouldn't need to do a calculation here.

What species is represented by the following information? P⁺ = 47 n° = 62 e^- = 46

How many moles of Cs are contained in 595 kg of Cs?

Which of the following elements is classified as a semimetal?

Predict the charge of the most stable ion of bromine.

How many iron atoms are contained in 354 g of iron?

Which of the following elements is a lanthinide?

Matter, Measurement, and Problem Solving

Molecules, Compounds and Chemical Equations

Chemical Quantities and Aqueous Reactions

Gases

Thermochemistry

The Quantum-Mechanical Model of the Atom

Periodic Properties of the Elements

Chemical Bonding I: Lewis Theory

Chemical Bonding II: Molecular Shapes, Valence Bond Theory, and

Liquids, Solids, and Intermolecular Forces

Solutions

Chemical Kinetics

Chemical Equilibrium

Acids and Bases

Aqueous Ionic Equilibrium

Free Energy and Thermodynamics

Electrochemistry

Radioactivity and Nuclear Chemistry

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Exam 2: Atoms and Elements

What is the chemical symbol for titanium?

Which of the following statements about isotopes is true?

Which of the following assumptions of Dalton's Atomic Theory are no longer valid?

Which of the following represent isotopes? A: X B: X C: X D: X

What is the element symbol for an atom that has 5 protons and 6 neutrons?

Iodine belongs to the ________ group of the periodic table.

Which of the following contains the fewest atoms? You shouldn't need to do a calculation here.

How many phosphorus atoms are contained in 158 kg of phosphorus?

How many electrons does the Al3+ ion possess?

Calculate the mass (in ng)of 2.33 × 1020 atoms of oxygen.

Barium belongs to the ________ group of the periodic table.

In which of the following sets do all species have the same number of electrons?

An ion has 8 protons,9 neutrons,and 10 electrons.The symbol for the ion is ________.

Which of the following contains the most atoms? You shouldn't need to do a calculation here.

What species is represented by the following information? P+ = 47 n° = 62 e- = 46

How many moles of Cs are contained in 595 kg of Cs?

Which of the following elements is classified as a semimetal?

Predict the charge of the most stable ion of bromine.

How many iron atoms are contained in 354 g of iron?

Which of the following elements is a lanthinide?

Matter, Measurement, and Problem Solving

Molecules, Compounds and Chemical Equations

Chemical Quantities and Aqueous Reactions

Gases

Thermochemistry

The Quantum-Mechanical Model of the Atom

Periodic Properties of the Elements

Chemical Bonding I: Lewis Theory

Chemical Bonding II: Molecular Shapes, Valence Bond Theory, and

Liquids, Solids, and Intermolecular Forces

Solutions

Chemical Kinetics

Chemical Equilibrium

Acids and Bases

Aqueous Ionic Equilibrium

Free Energy and Thermodynamics

Electrochemistry

Radioactivity and Nuclear Chemistry

Filters

How many electrons does the Al³⁺ion possess?

Calculate the mass (in ng)of 2.33 × 10²⁰atoms of oxygen.

What species is represented by the following information? P⁺ = 47 n° = 62 e^- = 46