Question 1

Identify the radioactive particle.

Accepted Answer

A)  a beta particle 
B)  an anion 
C)  a molecule 
D)  an electron 
E)  a mole 
A)  a beta particle 
B)  an anion 
C)  a molecule 
D)  an electron 
E)  a mole

Question 2

Beryllium belongs to the ________ group of the periodic table.

Accepted Answer

A)  alkali metal 
B)  alkaline earth metal 
C)  transition element 
D)  nonmetal 
A)  alkali metal 
B)  alkaline earth metal 
C)  transition element 
D)  nonmetal

Question 3

The atomic mass for cadmium is

Accepted Answer

A)  48 
B)  112.41 
C)  40.08 
D)  20 
E)  64.411 
A)  48 
B)  112.41 
C)  40.08 
D)  20 
E)  64.411

Question 4

Determine the number of protons,neutrons,and electrons in the following:   X

Accepted Answer

A)  p+ = 12 n° = 25 e- = 12 
B)  p+ = 12 n° = 12 e- = 13 
C)  p+ = 12 n° = 13 e- = 12 
D)  p+ = 25 n° = 12 e- = 13 
E)  p+ = 12 n° = 13 e- = 25 
A)  p+ = 12 n° = 25 e- = 12 
B)  p+ = 12 n° = 12 e- = 13 
C)  p+ = 12 n° = 13 e- = 12 
D)  p+ = 25 n° = 12 e- = 13 
E)  p+ = 12 n° = 13 e- = 25

Question 5

When two elements form two different compounds,the masses of element B that combine with 1 g of element A can be expressed as a ratio of small whole numbers.Which law does this refer to?

Accepted Answer

A)  Law of Definite Proportions 
B)  Law of the Conservation of Mass 
C)  Law of Modern Atomic Theory 
D)  Law of Multiple Proportions 
E)  First Law of Thermodynamics 
A)  Law of Definite Proportions 
B)  Law of the Conservation of Mass 
C)  Law of Modern Atomic Theory 
D)  Law of Multiple Proportions 
E)  First Law of Thermodynamics

Question 6

Isotopes differ in the number of

Accepted Answer

A)  gamma particles. 
B)  electrons. 
C)  compounds. 
D)  neutrons. 
E)  neutrons and protons. 
A)  gamma particles. 
B)  electrons. 
C)  compounds. 
D)  neutrons. 
E)  neutrons and protons.

Question 7

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 8

Which of the following elements is classified as a metalloid?

Accepted Answer

A)  sodium 
B)  germanium 
C)  iodine 
D)  gold 
E)  calcium 
A)  sodium 
B)  germanium 
C)  iodine 
D)  gold 
E)  calcium

Question 9

Which of the following elements is in Group 4?

Accepted Answer

A)  Hf 
B)  Ca 
C)  Bi 
D)  Ne 
E)  Cd 
A)  Hf 
B)  Ca 
C)  Bi 
D)  Ne 
E)  Cd

Question 10

Ions differ in the number of

Accepted Answer

A)  electrons. 
B)  neutrons. 
C)  protons. 
D)  neutrons and protons. 
E)  electrons and protons. 
A)  electrons. 
B)  neutrons. 
C)  protons. 
D)  neutrons and protons. 
E)  electrons and protons.

Question 11

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

Accepted Answer

A)  chlorine 
B)  helium 
C)  mercury 
D)  oxygen 
E)  barium 
A)  chlorine 
B)  helium 
C)  mercury 
D)  oxygen 
E)  barium

Question 12

Calculate the atomic mass of silver if silver has 2 naturally occurring isotopes with the following masses and natural abundances: Ag-107 106.90509 amu 51.84%
Ag-109 108.90476 amu 48.46%

Accepted Answer

A)  107.90 amu 
B)  108.00 amu 
C)  107.79 amu 
D)  108.32 amu 
E)  108.19 amu 
A)  107.90 amu 
B)  108.00 amu 
C)  107.79 amu 
D)  108.32 amu 
E)  108.19 amu

Question 13

What is the chemical symbol for carbon?

Accepted Answer

A)  Co 
B)  Cr 
C)  C 
D)  Ca 
E)  Cb 
A)  Co 
B)  Cr 
C)  C 
D)  Ca 
E)  Cb

Question 14

What element is defined by the following information? p+ = 11 n° = 12 e- = 11

Accepted Answer

A)  sodium 
B)  vanadium 
C)  magnesium 
D)  titanium 
E)  selenium 
A)  sodium 
B)  vanadium 
C)  magnesium 
D)  titanium 
E)  selenium

Question 15

What is the chemical symbol for molybdenum?

Accepted Answer

A)  Ma 
B)  Au 
C)  Mo 
D)  K 
E)  Mb 
A)  Ma 
B)  Au 
C)  Mo 
D)  K 
E)  Mb

Question 16

Silver has an atomic mass of 107.868 amu.The Ag-109 isotope (108.905 amu)is 48.16%.What is the amu of the other isotope?

Accepted Answer

A)  106.905 amu 
B)  106.908 amu 
C)  106.903 amu 
D)  106.911 amu 
A)  106.905 amu 
B)  106.908 amu 
C)  106.903 amu 
D)  106.911 amu

Question 17

Helium belongs to the ________ group of the periodic table.

Accepted Answer

A)  alkali metal 
B)  metal 
C)  transition metal 
D)  noble gas 
A)  alkali metal 
B)  metal 
C)  transition metal 
D)  noble gas

Question 18

Which element has the chemical symbol,Rn?

Accepted Answer

A)  radium 
B)  radon 
C)  rhenium 
D)  rhodium 
A)  radium 
B)  radon 
C)  rhenium 
D)  rhodium

Question 19

The atomic number is equal to

Accepted Answer

A)  the number of the protons. 
B)  the sum of the number of the neutrons and electrons. 
C)  the sum of the number of protons, neutrons, and electrons. 
D)  the sum of the number of protons and neutrons. 
A)  the number of the protons. 
B)  the sum of the number of the neutrons and electrons. 
C)  the sum of the number of protons, neutrons, and electrons. 
D)  the sum of the number of protons and neutrons.

Question 20

Identify the largest atom or ion of carbon.

Accepted Answer

A)  p+ = 6 n° = 6 e- = 6 
B)  p+ = 6 n° = 7 e- = 6 
C)  p+ = 6 n° = 6 e- = 7 
D)  p+ = 6 n° = 6 e- = 5 
A)  p+ = 6 n° = 6 e- = 6 
B)  p+ = 6 n° = 7 e- = 6 
C)  p+ = 6 n° = 6 e- = 7 
D)  p+ = 6 n° = 6 e- = 5

Exam 2: Atoms and Elements

Identify the radioactive particle.

Beryllium belongs to the ________ group of the periodic table.

The atomic mass for cadmium is

Determine the number of protons,neutrons,and electrons in the following: X

When two elements form two different compounds,the masses of element B that combine with 1 g of element A can be expressed as a ratio of small whole numbers.Which law does this refer to?

Isotopes differ in the number of

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

Which of the following elements is classified as a metalloid?

Which of the following elements is in Group 4?

Ions differ in the number of

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

Calculate the atomic mass of silver if silver has 2 naturally occurring isotopes with the following masses and natural abundances: Ag-107 106.90509 amu 51.84% Ag-109 108.90476 amu 48.46%

What is the chemical symbol for carbon?

What element is defined by the following information? p+ = 11 n° = 12 e- = 11

What is the chemical symbol for molybdenum?

Silver has an atomic mass of 107.868 amu.The Ag-109 isotope (108.905 amu)is 48.16%.What is the amu of the other isotope?

Helium belongs to the ________ group of the periodic table.

Which element has the chemical symbol,Rn?

The atomic number is equal to

Identify the largest atom or ion of carbon.

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,

Liquids,solids,and Intermolecular Forces

Solids and Modern Materials

Solutions

Chemical Kinetics

Chemical Equilibrium

Acids and Bases

Aqueous Ionic Equilibrium

Free Energy and Thermodynamics

Electrochemistry

Radioactivity and Nuclear Chemistry

Organic Chemistry

Biochemistry

Chemistry of the Nonmetals

Metals and Metallurgy

Transition Metals and Coordination Compounds

Filters

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

What element is defined by the following information? p⁺ = 11 n° = 12 e^- = 11