Question 1

What species is represented by the following information?
P+ = 17 n° = 18 e- = 18

Accepted Answer

A) Cl 
B) Cl- 
C) Ar 
D) Ar+ 
E) Kr 
A) Cl 
B) Cl- 
C) Ar 
D) Ar+ 
E) Kr

Question 2

Which of the following elements is a good conductor of heat and electricity?

Accepted Answer

A) carbon 
B) chlorine 
C) neon 
D) aluminum 
A) carbon 
B) chlorine 
C) neon 
D) aluminum

Question 3

Identify a cation.

Accepted Answer

A) an atom that has lost an electron 
B) an atom that has gained an electron 
C) an atom that has lost a proton 
D) an atom that has gained a proton 
A) an atom that has lost an electron 
B) an atom that has gained an electron 
C) an atom that has lost a proton 
D) an atom that has gained a proton

Question 4

Which of the following elements is not a solid at room temperature?

Accepted Answer

A) Ag 
B) Al 
C) Xe 
D) Fe 
A) Ag 
B) Al 
C) Xe 
D) Fe

Question 5

How many xenon atoms are contained in 2.36 moles of xenon?

Accepted Answer

A) 3.92 × 1024 xenon atoms 
B) 2.55 × 1023 xenon atoms 
C) 1.42 × 1024 xenon atoms 
D) 7.91 × 1025 xenon atoms 
E) 1.87 × 1026 xenon atoms 
A) 3.92 × 1024 xenon atoms 
B) 2.55 × 1023 xenon atoms 
C) 1.42 × 1024 xenon atoms 
D) 7.91 × 1025 xenon atoms 
E) 1.87 × 1026 xenon atoms

Question 6

Semiconductors usually are

Accepted Answer

A) metalloids. 
B) noble gases. 
C) nonmetals. 
D) metals. 
A) metalloids. 
B) noble gases. 
C) nonmetals. 
D) metals.

Question 7

Argon 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 8

Predict the charge that a calcium ion would have.

Accepted Answer

A) 6- 
B) 2- 
C) 3+ 
D) 2+ 
E) 1+ 
A) 6- 
B) 2- 
C) 3+ 
D) 2+ 
E) 1+

Question 9

Define atomic mass.

Accepted Answer

The atomic mass represents the

Question 10

Which of the following elements is a metalloid?

Accepted Answer

A) Al 
B) Ge 
C) C 
D) Sn 
A) Al 
B) Ge 
C) C 
D) Sn

Question 11

The atomic number of an atom of 80Br is ________.

Accepted Answer

A) 115 
B) 35 
C) 45 
D) 73 
E) 80 
A) 115 
B) 35 
C) 45 
D) 73 
E) 80

Question 12

What mass (in g)does 3.99 moles of Kr have?

Accepted Answer

A) 334 g 
B) 476 g 
C) 211 g 
D) 240 g 
E) 144 g 
A) 334 g 
B) 476 g 
C) 211 g 
D) 240 g 
E) 144 g

Question 13

Which of the following does not describe a metal?

Accepted Answer

A) Good conductor of heat 
B) Good conductor of electricity 
C) Tends to gain electrons 
D) Forms ionic compounds with nonmetals 
E) Found on the left side of the periodic table 
A) Good conductor of heat 
B) Good conductor of electricity 
C) Tends to gain electrons 
D) Forms ionic compounds with nonmetals 
E) Found on the left side of the periodic table

Question 14

What does "X" represent in the following symbol? 
  X

Accepted Answer

A) tin 
B) copper 
C) palladium 
D) niobium 
E) uranium 
A) tin 
B) copper 
C) palladium 
D) niobium 
E) uranium

Question 15

Which of the following statements is not correct?

Accepted Answer

A) Atoms are invisible. 
B) Atoms are made of subatomic particles. 
C) Each element contains different atoms. 
D) An atom has mass. 
A) Atoms are invisible. 
B) Atoms are made of subatomic particles. 
C) Each element contains different atoms. 
D) An atom has mass.

Question 16

How many argon atoms are contained in 7.66 × 105 mmol of argon?

Accepted Answer

A) 4.61 × 1026 Ar atoms 
B) 1.84 × 1028 Ar atoms 
C) 1.15 × 1028 Ar atoms 
D) 7.86 × 1020 Ar atoms 
E) 3.24 × 1026 Ar atoms 
A) 4.61 × 1026 Ar atoms 
B) 1.84 × 1028 Ar atoms 
C) 1.15 × 1028 Ar atoms 
D) 7.86 × 1020 Ar atoms 
E) 3.24 × 1026 Ar atoms

Question 17

Identify an anion.

Accepted Answer

A) an atom that has lost an electron 
B) an atom that has gained an electron 
C) an atom that has lost a neutron and a proton 
D) an atom that has gained a neutron 
A) an atom that has lost an electron 
B) an atom that has gained an electron 
C) an atom that has lost a neutron and a proton 
D) an atom that has gained a neutron

Question 18

What species is represented by the following information?
P+ = 12 n° = 14 e- = 10

Accepted Answer

A) Si4+ 
B) Mg 
C) Ne 
D) Si 
E) Mg2+ 
A) Si4+ 
B) Mg 
C) Ne 
D) Si 
E) Mg2+

Question 19

The U.S.Mint produced pure silver quarter commemorative coins in 1992,each coin weighing 5.67 g.How many silver atoms are present in each coin?

Accepted Answer

A) 6.02 × 1023 
B) 3.15 × 1022 
C) 1.14 × 1023 
D) 1.14 × 10-23 
A) 6.02 × 1023 
B) 3.15 × 1022 
C) 1.14 × 1023 
D) 1.14 × 10-23

Question 20

Which of the following elements is a gas at room temperature?

Accepted Answer

A) bromine 
B) carbon 
C) helium 
D) sodium 
A) bromine 
B) carbon 
C) helium 
D) sodium

What species is represented by the following information? P⁺ = 17 n° = 18 e^- = 18

Which of the following elements is a good conductor of heat and electricity?

Identify a cation.

Which of the following elements is not a solid at room temperature?

How many xenon atoms are contained in 2.36 moles of xenon?

Semiconductors usually are

Argon belongs to the ________ group of the periodic table.

Predict the charge that a calcium ion would have.

Define atomic mass.

Which of the following elements is a metalloid?

The atomic number of an atom of ⁸⁰Br is ________.

What mass (in g)does 3.99 moles of Kr have?

Which of the following does not describe a metal?

What does "X" represent in the following symbol? X

Which of the following statements is not correct?

How many argon atoms are contained in 7.66 × 10⁵ mmol of argon?

Identify an anion.

What species is represented by the following information? P⁺ = 12 n° = 14 e^- = 10

The U.S.Mint produced pure silver quarter commemorative coins in 1992,each coin weighing 5.67 g.How many silver atoms are present in each coin?

Which of the following elements is a gas at room temperature?

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

Exam 2: Atoms and Elements

What species is represented by the following information? P+ = 17 n° = 18 e- = 18

Which of the following elements is a good conductor of heat and electricity?

Identify a cation.

Which of the following elements is not a solid at room temperature?

How many xenon atoms are contained in 2.36 moles of xenon?

Semiconductors usually are

Argon belongs to the ________ group of the periodic table.

Predict the charge that a calcium ion would have.

Define atomic mass.

Which of the following elements is a metalloid?

The atomic number of an atom of 80Br is ________.

What mass (in g)does 3.99 moles of Kr have?

Which of the following does not describe a metal?

What does "X" represent in the following symbol? X

Which of the following statements is not correct?

How many argon atoms are contained in 7.66 × 105 mmol of argon?

Identify an anion.

What species is represented by the following information? P+ = 12 n° = 14 e- = 10

The U.S.Mint produced pure silver quarter commemorative coins in 1992,each coin weighing 5.67 g.How many silver atoms are present in each coin?

Which of the following elements is a gas at room temperature?

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

What species is represented by the following information? P⁺ = 17 n° = 18 e^- = 18

The atomic number of an atom of ⁸⁰Br is ________.

How many argon atoms are contained in 7.66 × 10⁵ mmol of argon?

What species is represented by the following information? P⁺ = 12 n° = 14 e^- = 10