Question 1

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

Accepted Answer

A)  1s, 2s, 2p, 3s, 3p, 3d, 4s 
B)  1s, 2s, 2p, 3s, 3p, 4s, 3d 
C)  1s, 2s, 3s, 4s, 2p, 3p, 3d 
D)  none of these 
A)  1s, 2s, 2p, 3s, 3p, 3d, 4s 
B)  1s, 2s, 2p, 3s, 3p, 4s, 3d 
C)  1s, 2s, 3s, 4s, 2p, 3p, 3d 
D)  none of these

Question 2

Ammonium nitrate is a component of both fertilizers and explosives. Ammonium nitrate has nitrogen, hydrogen and oxygen atoms in the ratio 2:4:3. What is the correct formula for ammonium nitrate?

Accepted Answer

A)  N4H8O6 
B)  N2H4O3 
C)  N1H2O1.5 
D)  all of these 
A)  N4H8O6 
B)  N2H4O3 
C)  N1H2O1.5 
D)  all of these

Question 3

Which of the following contains only transition metals?

Accepted Answer

A)  Ca, Cr, Fe, Ni, 
B)  V, W, Xe, Zr 
C)  Cr, Mo, Ni, Pt 
D)  none of these 
A)  Ca, Cr, Fe, Ni, 
B)  V, W, Xe, Zr 
C)  Cr, Mo, Ni, Pt 
D)  none of these

Question 4

The word atom is derived from a word in which language?

Accepted Answer

A)  Arabic 
B)  Greek 
C)  Hebrew 
D)  Latin 
A)  Arabic 
B)  Greek 
C)  Hebrew 
D)  Latin

Question 5

When filling a set of orbitals of equal energy which of the following is true?

Accepted Answer

A)  There are no sets of orbitals of equal energy. 
B)  Two electrons will occupy the same orbital rather than separate orbitals. 
C)  Two electrons will occupy different orbitals and have opposing spins. 
D)  Two electrons will occupy different orbitals and have like spins. 
A)  There are no sets of orbitals of equal energy. 
B)  Two electrons will occupy the same orbital rather than separate orbitals. 
C)  Two electrons will occupy different orbitals and have opposing spins. 
D)  Two electrons will occupy different orbitals and have like spins.

Question 6

Zinc can be uniformly mixed in differing amounts with copper to form an alloy called brass. Brass is an examples of which of the following?

Accepted Answer

A)  compounds 
B)  elements 
C)  homogeneous mixtures 
D)  heterogeneous mixtures 
A)  compounds 
B)  elements 
C)  homogeneous mixtures 
D)  heterogeneous mixtures

Question 7

Which of the following give(s) the correct order of ionization energies?

Accepted Answer

A) Li > Na > K > Rb B) Na < Mg < P < Cl C) both a and b D) neither a nor b A) Li > Na > K > Rb B) Na < Mg < P < Cl C) both a and b D) neither a nor b

Question 8

How many elements are there in period 2?

Accepted Answer

A)  2 
B)  6 
C)  8 
D)  18 
A)  2 
B)  6 
C)  8 
D)  18

Question 9

Which of the following contains only nonmetals?

Accepted Answer

A)  C, Si, Ge, Sn 
B)  P, As, Sb, Bi 
C)  F, Cl, Br, I 
D)  none of these 
A)  C, Si, Ge, Sn 
B)  P, As, Sb, Bi 
C)  F, Cl, Br, I 
D)  none of these

Question 10

Which of the following give(s) the correct order of ionization energies?

Accepted Answer

A)  Li < Na < K < Rb 
B)  Na < Mg < P < Cl 
C)  both a and b 
D)  neither a nor b 
A)  Li < Na < K < Rb 
B)  Na < Mg < P < Cl 
C)  both a and b 
D)  neither a nor b

Question 11

Which of the following has the highest ionization energy?

Accepted Answer

A)  Ba 
B)  Ca 
C)  Mg 
D)  Sr 
A)  Ba 
B)  Ca 
C)  Mg 
D)  Sr

Question 12

Which of the following elements is named for a country?

Accepted Answer

A)  Fr 
B)  Ge 
C)  Po 
D)  all of them 
A)  Fr 
B)  Ge 
C)  Po 
D)  all of them

Question 13

The ionization energy of an atom is which of the following?

Accepted Answer

A)  the energy released when an atom gains an electron 
B)  the energy released when an atom loses an electron 
C)  the energy required to add an electron to an atom 
D)  the energy required to remove an electron from an atom 
A)  the energy released when an atom gains an electron 
B)  the energy released when an atom loses an electron 
C)  the energy required to add an electron to an atom 
D)  the energy required to remove an electron from an atom

Question 14

Electrons can sometimes fill orbitals in a manner other than according to the rules we have specified. If they do so we say the atom is in an excited state. Which of the following represent(s) the excited state of an atom?

Accepted Answer

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

Question 15

Which of the following is true of ionization energies as one moves left to right across a period of the periodic table?

Accepted Answer

A)  They consistently decrease. 
B)  They consistently increase. 
C)  They generally decrease, but there are some exceptions. 
D)  They generally increase, but there are some exceptions. 
A)  They consistently decrease. 
B)  They consistently increase. 
C)  They generally decrease, but there are some exceptions. 
D)  They generally increase, but there are some exceptions.

Question 16

It is commonly assumed that the isotopic abundances of a particular element are independent of the source of the element. If isotopic abundance does vary with location what is the consequence of that observation?

Accepted Answer

A)  Nothing, the observation is totally unimportant. 
B)  The atomic weight determined for the element will depend on the source from which the element was obtained. 
C)  The chemical behavior of the element will depend on the source from which the element was obtained. 
D)  The atomic weight and the chemical behavior of the element will depend on the source from which the element was obtained. 
A)  Nothing, the observation is totally unimportant. 
B)  The atomic weight determined for the element will depend on the source from which the element was obtained. 
C)  The chemical behavior of the element will depend on the source from which the element was obtained. 
D)  The atomic weight and the chemical behavior of the element will depend on the source from which the element was obtained.

Question 17

Which of the following correctly describes an electron?

Accepted Answer

A)  on the scale of subatomic particles it is massive and has a +1 charge 
B)  on the scale of subatomic particles it is massive and has a -1 charge 
C)  on the scale of subatomic particles it is light and has a +1 charge 
D)  on the scale of subatomic particles it is light and has a -1 charge 
A)  on the scale of subatomic particles it is massive and has a +1 charge 
B)  on the scale of subatomic particles it is massive and has a -1 charge 
C)  on the scale of subatomic particles it is light and has a +1 charge 
D)  on the scale of subatomic particles it is light and has a -1 charge

Question 18

Which of the following best compares Democritus' 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 was based on thought only, but our view is based on experimental evidence. 
D)  Both views were 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 was based on thought only, but our view is based on experimental evidence. 
D)  Both views were based on a combination of thought and experimental evidence.

Question 19

What is the mass number of an atom which is made up of 38 protons, 52 neutrons and 38 electrons?

Accepted Answer

A)  38 
B)  52 
C)  90 
D)  128 
A)  38 
B)  52 
C)  90 
D)  128

Question 20

Consider the image given below.   Which of the following is the correct designation for this orbital?

Accepted Answer

A)  s 
B)  px 
C)  py. 
D)  px, 
E)  b, c or d 
A)  s 
B)  px 
C)  py. 
D)  px, 
E)  b, c or d

Exam 2: Atoms

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

Ammonium nitrate is a component of both fertilizers and explosives. Ammonium nitrate has nitrogen, hydrogen and oxygen atoms in the ratio 2:4:3. What is the correct formula for ammonium nitrate?

Which of the following contains only transition metals?

The word atom is derived from a word in which language?

When filling a set of orbitals of equal energy which of the following is true?

Zinc can be uniformly mixed in differing amounts with copper to form an alloy called brass. Brass is an examples of which of the following?

Which of the following give(s) the correct order of ionization energies?

How many elements are there in period 2?

Which of the following contains only nonmetals?

Which of the following give(s) the correct order of ionization energies?

Which of the following has the highest ionization energy?

Which of the following elements is named for a country?

The ionization energy of an atom is which of the following?

Electrons can sometimes fill orbitals in a manner other than according to the rules we have specified. If they do so we say the atom is in an excited state. Which of the following represent(s) the excited state of an atom?

Which of the following is true of ionization energies as one moves left to right across a period of the periodic table?

It is commonly assumed that the isotopic abundances of a particular element are independent of the source of the element. If isotopic abundance does vary with location what is the consequence of that observation?

Which of the following correctly describes an electron?

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

What is the mass number of an atom which is made up of 38 protons, 52 neutrons and 38 electrons?

Consider the image given below. Which of the following is the correct designation for this orbital?

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 and Alkynes

Benzene and Its Derivatives

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

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