Question 1

How are electrons distributed among orbitals of equal energy?

Accepted Answer

A)  The electrons will occupy the same orbital rather than separate orbitals and have opposite spins. 
B)  The electrons will occupy the same orbital rather than separate orbitals and have like spins. 
C)  The electrons will occupy different orbitals and have opposite spins. 
D)  The electrons will occupy different orbitals and have like spins. 
A)  The electrons will occupy the same orbital rather than separate orbitals and have opposite spins. 
B)  The electrons will occupy the same orbital rather than separate orbitals and have like spins. 
C)  The electrons will occupy different orbitals and have opposite spins. 
D)  The electrons will occupy different orbitals and have like spins.

Question 2

When potassium loses an electron to form K+, which electron is lost?

Accepted Answer

A)  1s 
B)  2s 
C)  3s 
D)  4s 
A)  1s 
B)  2s 
C)  3s 
D)  4s

Question 3

Which of the following columns of the periodic table contains only gaseous elements?

Accepted Answer

A)  5A 
B)  6A 
C)  7A 
D)  8A 
A)  5A 
B)  6A 
C)  7A 
D)  8A

Question 4

What are the vertical columns of the periodic table called?

Accepted Answer

A)  families 
B)  periods 
C)  either families or periods 
D)  neither families nor periods 
A)  families 
B)  periods 
C)  either families or periods 
D)  neither families nor periods

Question 5

Which of the following elements has the largest atoms?

Accepted Answer

A)  Rb 
B)  K 
C)  Na 
D)  None, they are all the same size. 
A)  Rb 
B)  K 
C)  Na 
D)  None, they are all the same size.

Question 6

Which of the following represents the correct order of filling orbitals?

Accepted Answer

A)  1s, 2s, 3s, 2p, 3p, and 3d 
B)  1s, 2s, 2p, 3s, 3p, and 3d 
C)  1s, 2p, 3d, 2s, 3s, and 3p 
D)  none of these 
A)  1s, 2s, 3s, 2p, 3p, and 3d 
B)  1s, 2s, 2p, 3s, 3p, and 3d 
C)  1s, 2p, 3d, 2s, 3s, and 3p 
D)  none of these

Question 7

What are the horizontal rows of the periodic table called?

Accepted Answer

A)  cycles 
B)  periods 
C)  families 
D)  none of these 
A)  cycles 
B)  periods 
C)  families 
D)  none of these

Question 8

Which of the following sets of numbers could be used to designate the principal energy levels (shells) in an atom?

Accepted Answer

A)  -1, 0, 1, 2, and 3 
B)  0, 1, 2, 3, and 4 
C)  1, 2, 3, 4, and 5 
D)  all of these 
A)  -1, 0, 1, 2, and 3 
B)  0, 1, 2, 3, and 4 
C)  1, 2, 3, 4, and 5 
D)  all of these

Question 9

Which of the following contains two species that have the same mass number?

Accepted Answer

A)  14C and 14N 
B)  12C and 13C 
C)  14C and 14N and 12C and 13C 
D)  Neither 14C and 14N nor 12C and 13C 
A)  14C and 14N 
B)  12C and 13C 
C)  14C and 14N and 12C and 13C 
D)  Neither 14C and 14N nor 12C and 13C

Question 10

How many electrons can be accommodated in the 2d subshell?

Accepted Answer

A)  2 
B)  5 
C)  10 
D)  None, there is no 2d subshell. 
A)  2 
B)  5 
C)  10 
D)  None, there is no 2d subshell.

Question 11

When a strong magnet is brought near a sample that contains both iron and sulfur, the iron and the sulfur are separated from one another. Which type of matter is this sample?

Accepted Answer

A)  It is a compound. 
B)  It is a homogeneous mixture. 
C)  It is a heterogeneous mixture. 
D)  The information given is not enough to answer this question. 
A)  It is a compound. 
B)  It is a homogeneous mixture. 
C)  It is a heterogeneous mixture. 
D)  The information given is not enough to answer this question.

Question 12

Electrons can sometimes fill orbitals in manners that defy specified rules. If they do so, we say that the atom is in an excited state. Which of the following represents the excited state of an atom?

Accepted Answer

A)  1s22s22p63s2 
B)  1s22s22p63s13p1 
C)  both 1s22s22p63s2 and 1s22s22p63s13p1 
D)  neither 1s22s22p63s2 nor 1s22s22p63s13p1 
A)  1s22s22p63s2 
B)  1s22s22p63s13p1 
C)  both 1s22s22p63s2 and 1s22s22p63s13p1 
D)  neither 1s22s22p63s2 nor 1s22s22p63s13p1

Question 13

Which column of the periodic table contains the halogens?

Accepted Answer

A)  1A 
B)  4A 
C)  7A 
D)  8A 
A)  1A 
B)  4A 
C)  7A 
D)  8A

Question 14

Which Greek philosopher thought that matter was infinitely divisible?

Accepted Answer

A)  Aristotle 
B)  Democritus 
C)  Plato 
D)  Zeno 
A)  Aristotle 
B)  Democritus 
C)  Plato 
D)  Zeno

Question 15

How many electrons can be accommodated in the 3d subshell?

Accepted Answer

A)  3 
B)  6 
C)  10 
D)  18 
A)  3 
B)  6 
C)  10 
D)  18

Question 16

Which of the following contains only transition metals?

Accepted Answer

A)  Ca, Cr, Fe, and Ni 
B)  V, K, P, and B 
C)  Cr, Mn, Ni, and Cu 
D)  none of these 
A)  Ca, Cr, Fe, and Ni 
B)  V, K, P, and B 
C)  Cr, Mn, Ni, and Cu 
D)  none of these

Question 17

Which of the following elements has the largest atoms?

Accepted Answer

A)  Al 
B)  Mg 
C)  Na 
D)  None, they are all the same size. 
A)  Al 
B)  Mg 
C)  Na 
D)  None, they are all the same size.

Question 18

Which of the following subatomic particles are found in the nucleus?

Accepted Answer

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

Question 19

Which of the following best compares Democritus's view of matter and our current view?

Accepted Answer

A)  Both views are based on belief only. 
B)  Both views are based on firm experimental evidence. 
C)  The ancient view is based on thought only, but the current view is based on experimental evidence. 
D)  Both views are based on a combination of thought and experimental evidence. 
A)  Both views are based on belief only. 
B)  Both views are based on firm experimental evidence. 
C)  The ancient view is based on thought only, but the current view is based on experimental evidence. 
D)  Both views are based on a combination of thought and experimental evidence.

Question 20

What is the mass number of an atom that is made up of 38 protons, 49 neutrons, and 38 electrons?

Accepted Answer

A)  38 
B)  49 
C)  87 
D)  125 
A)  38 
B)  49 
C)  87 
D)  125

Exam 2: Atoms

How are electrons distributed among orbitals of equal energy?

When potassium loses an electron to form K+, which electron is lost?

Which of the following columns of the periodic table contains only gaseous elements?

What are the vertical columns of the periodic table called?

Which of the following elements has the largest atoms?

Which of the following represents the correct order of filling orbitals?

What are the horizontal rows of the periodic table called?

Which of the following sets of numbers could be used to designate the principal energy levels (shells) in an atom?

Which of the following contains two species that have the same mass number?

How many electrons can be accommodated in the 2d subshell?

When a strong magnet is brought near a sample that contains both iron and sulfur, the iron and the sulfur are separated from one another. Which type of matter is this sample?

Electrons can sometimes fill orbitals in manners that defy specified rules. If they do so, we say that the atom is in an excited state. Which of the following represents the excited state of an atom?

Which column of the periodic table contains the halogens?

Which Greek philosopher thought that matter was infinitely divisible?

How many electrons can be accommodated in the 3d subshell?

Which of the following contains only transition metals?

Which of the following elements has the largest atoms?

Which of the following subatomic particles are found in the nucleus?

Which of the following best compares Democritus's view of matter and our current view?

What is the mass number of an atom that is made up of 38 protons, 49 neutrons, and 38 electrons?

Matter, Energy, and Measurement

Chemical Bonds

Chemical Reactions

Gases, Liquids, and Solids

Solutions and Colloids

Reaction Rates and Chemical Equilibrium

Acids and Bases

Nuclear Chemistry

Organic Chemistry

Alkanes

Alkenes, Alkynes, and Aromatic Compounds

Alcohols, Ethers, and Thiols

Chirality: the Handedness of Molecules

Amines

Aldehydes and Ketones

Carboxylic Acids

Carboxylic Anhydrides, Esters, and Amides

Carbohydrates

Lipids

Proteins

Enzymes

Chemical Communications: Neurotransmitters and Hormones

Nucleotides, Nucleic Acids, and Heredity

Gene Expression and Protein Synthesis

Bioenergetics: How the Body Converts Food to Energy

Specific Catabolic Pathways: Carbohydrate, Lipid, and Protein Metabolism

Biosynthetic Pathways

Nutrition

Immunochemistry

Body Fluids

Filters

When potassium loses an electron to form K⁺, which electron is lost?