Question 1

How many orbitals are in an s sublevel? How many in a p sublevel?

Accepted Answer

A) s: 1,p: 2 
B) s: 2,p: 3 
C) s: 1,p: 3 
D) s: 2,p: 6 
E) s: 3,p: 3 
A) s: 1,p: 2 
B) s: 2,p: 3 
C) s: 1,p: 3 
D) s: 2,p: 6 
E) s: 3,p: 3

Question 2

What are the columns of elements on the periodic table called?

Accepted Answer

A) groups 
B) shells 
C) periods 
D) metals 
E) rows 
A) groups 
B) shells 
C) periods 
D) metals 
E) rows

Question 3

Where are the alkaline earth metals located on the periodic table?

Accepted Answer

A) IA (1) 
B) IIA (2) 
C) IIIA (3) 
D) VIIA (17) 
E) VIIIA (18) 
A) IA (1) 
B) IIA (2) 
C) IIIA (3) 
D) VIIA (17) 
E) VIIIA (18)

Question 4

Which of the following statements relating to Bohr's model of the hydrogen atom is FALSE?

Accepted Answer

A) The lowest energy orbit has quantum number n = 1. 
B) The highest energy orbits are farthest from the nucleus. 
C) In a transition from the n = 3 to the n = 1 level,light is emitted. 
D) Energy differences between energy levels can be calculated from the wavelengths of the light absorbed or emitted. 
E) The Bohr model consists of energy levels that are evenly spaced,like the rungs of a ladder. 
A) The lowest energy orbit has quantum number n = 1. 
B) The highest energy orbits are farthest from the nucleus. 
C) In a transition from the n = 3 to the n = 1 level,light is emitted. 
D) Energy differences between energy levels can be calculated from the wavelengths of the light absorbed or emitted. 
E) The Bohr model consists of energy levels that are evenly spaced,like the rungs of a ladder.

Question 5

What kind(s)of particles can be found outside the nucleus of an atom?

Accepted Answer

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

Question 6

The ground state electron configuration of chlorine is shown.Which statement concerning an atom of chlorine is FALSE? $\begin{array} { | l | l | } 
\hline \mathrm { Cl } & 1 s ^ { 2 } 2 s ^ { 2 } 2 p ^ { 6 } 3 s ^ { 2 } 3 p ^ { 5 } \
\hline
\end{array}$

Accepted Answer

A) A chlorine atom has 17 total electrons. 
B) The outermost energy level in a chlorine atom is n=3. 
C) A chlorine atom has 5 valence electrons. 
D) A chlorine atom needs one electron to obtain an octet in its outermost energy level. 
E) A chlorine atom has 17 protons. 
A) A chlorine atom has 17 total electrons. 
B) The outermost energy level in a chlorine atom is n=3. 
C) A chlorine atom has 5 valence electrons. 
D) A chlorine atom needs one electron to obtain an octet in its outermost energy level. 
E) A chlorine atom has 17 protons.

Question 7

Who discovered the existence of the atomic nucleus?

Accepted Answer

A) Crookes 
B) Thomson 
C) Geiger 
D) Rutherford 
E) Bohr 
A) Crookes 
B) Thomson 
C) Geiger 
D) Rutherford 
E) Bohr

Question 8

How many valence electrons are present in a chloride ion,Cl??

Accepted Answer

A) 5 
B) 7 
C) 8 
D) 17 
E) 18 
A) 5 
B) 7 
C) 8 
D) 17 
E) 18

Question 9

Atoms of the noble gas elements,Group VIII A (18),do not readily bond to other elements.

Accepted Answer

A) True 
 B)False

Question 10

What are the three primary particles found in an atom?

Accepted Answer

A) neutron,positron,and electron 
B) electron,neutron,and proton 
C) electron,proton,and nucleon 
D) positron,electron,and nucleon 
E) proton,electron,and neutrino 
A) neutron,positron,and electron 
B) electron,neutron,and proton 
C) electron,proton,and nucleon 
D) positron,electron,and nucleon 
E) proton,electron,and neutrino

Question 11

What was J.J.Thomson's important discovery about cathode rays in 1897?

Accepted Answer

A) Cathode rays were indestructible. 
B) Cathode rays were heavier than anode rays. 
C) Cathode rays consisted of a stream of electrons. 
D) Cathode rays were produced by all radioactive atoms. 
E) Cathode rays were able to initiate radioactive decay of an atom. 
A) Cathode rays were indestructible. 
B) Cathode rays were heavier than anode rays. 
C) Cathode rays consisted of a stream of electrons. 
D) Cathode rays were produced by all radioactive atoms. 
E) Cathode rays were able to initiate radioactive decay of an atom.

Question 12

In Mendeleev's table of the elements,the elements were arranged according to

Accepted Answer

A) atomic number. 
B) mass number. 
C) atomic mass. 
D) neutron number. 
E) density. 
A) atomic number. 
B) mass number. 
C) atomic mass. 
D) neutron number. 
E) density.

Question 13

Which one of the following electron configurations is appropriate for a ground state atom?

Accepted Answer

A) 1s12s1 
B) 1s22s1 
C) 1s22s22p8 
D) 1s22s22p43s1 
E) 1s22s22p63d1 
A) 1s12s1 
B) 1s22s1 
C) 1s22s22p8 
D) 1s22s22p43s1 
E) 1s22s22p63d1

Question 14

Which statement about the modern periodic table is FALSE?

Accepted Answer

A) Elements are arranged in order of increasing atomic number. 
B) A period is a horizontal row of elements. 
C) A group is a vertical column of elements. 
D) A stepwise line separates the metals from the nonmetals; metals are to the left of the line,nonmetals are to the right of the line. 
E) Elements in the same period share similar chemical and physical properties. 
A) Elements are arranged in order of increasing atomic number. 
B) A period is a horizontal row of elements. 
C) A group is a vertical column of elements. 
D) A stepwise line separates the metals from the nonmetals; metals are to the left of the line,nonmetals are to the right of the line. 
E) Elements in the same period share similar chemical and physical properties.

Question 15

Which best explains why an Al3+ ion is smaller than an Al atom?

Accepted Answer

A) In forming the Al3+ ion,the Al atom loses the electrons in its outermost energy level,causing a decrease in the atomic radius. 
B) In forming the Al3+ ion,the Al atom gains three protons and the resulting net positive charge keeps the electrons more strongly attracted to the nucleus,reducing the radius. 
C) The Al3+ ion contains more electrons than the Al atom,which results in a greater attraction for the nucleus and a smaller atomic radius. 
D) In forming the Al3+ ion,the Al atom adds electrons into a higher energy level,causing a decrease in the atomic radius. 
E) There are more protons in an Al3+ ion than there are in an Al atom. 
A) In forming the Al3+ ion,the Al atom loses the electrons in its outermost energy level,causing a decrease in the atomic radius. 
B) In forming the Al3+ ion,the Al atom gains three protons and the resulting net positive charge keeps the electrons more strongly attracted to the nucleus,reducing the radius. 
C) The Al3+ ion contains more electrons than the Al atom,which results in a greater attraction for the nucleus and a smaller atomic radius. 
D) In forming the Al3+ ion,the Al atom adds electrons into a higher energy level,causing a decrease in the atomic radius. 
E) There are more protons in an Al3+ ion than there are in an Al atom.

Question 16

Which of the following atoms and ions will have the largest radius?

Accepted Answer

A) S2- 
B) S 
C) Cl 
D) F 
E) He 
A) S2- 
B) S 
C) Cl 
D) F 
E) He

Question 17

Which statement correctly describes the basis for the octet rule? $\begin{array} { | l | l | } 
\hline \text { Ar } & 1 s ^ { 2 } 2 s ^ { 2 } 2 p ^ { 6 } 3 s ^ { 2 } 3 p ^ { 6 } \
\hline
\end{array}$

Accepted Answer

A) Atoms strive to attain eight protons in their nucleus to attain the stability of the nearest noble gas. 
B) Atoms have a tendency to form eight bonds with other atoms to attain the stability of a noble gas. 
C) Atoms will lose,gain,or share eight electrons to become a noble gas. 
D) Atoms are most stable with eight electrons in their outermost shell and the electron configuration of a noble gas. 
E) Atoms are most stable when the number of protons they contain is identical to the noble gas closest to them in the periodic table. 
A) Atoms strive to attain eight protons in their nucleus to attain the stability of the nearest noble gas. 
B) Atoms have a tendency to form eight bonds with other atoms to attain the stability of a noble gas. 
C) Atoms will lose,gain,or share eight electrons to become a noble gas. 
D) Atoms are most stable with eight electrons in their outermost shell and the electron configuration of a noble gas. 
E) Atoms are most stable when the number of protons they contain is identical to the noble gas closest to them in the periodic table.

Question 18

What is the value of the mass number in the isotope 131
53 I?

Accepted Answer

A) 53 
B) 78 
C) 126.9 
D) 131 
E) 184 
A) 53 
B) 78 
C) 126.9 
D) 131 
E) 184

Question 19

For the imaginary element abdicinium (Ab),two isotopes exist.Isotope one has a mass of 40.005 amu with a relative abundance of 14.00%.Isotope two has a mass of 41.008 amu with a relative abundance of 86.00%.What is the atomic mass of the element?

Accepted Answer

A) 40.99 amu 
B) 40.87 amu 
C) 40.61 amu 
D) 40.21 amu 
E) 40.05 amu 
A) 40.99 amu 
B) 40.87 amu 
C) 40.61 amu 
D) 40.21 amu 
E) 40.05 amu

Question 20

Europium (Eu)is a lanthanide element.

Accepted Answer

A) True 
 B)False

Exam 2: The Structure of the Atom and the Periodic Table

How many orbitals are in an s sublevel? How many in a p sublevel?

What are the columns of elements on the periodic table called?

Where are the alkaline earth metals located on the periodic table?

Which of the following statements relating to Bohr's model of the hydrogen atom is FALSE?

What kind(s)of particles can be found outside the nucleus of an atom?

The ground state electron configuration of chlorine is shown.Which statement concerning an atom of chlorine is FALSE? 12233

Who discovered the existence of the atomic nucleus?

How many valence electrons are present in a chloride ion,Cl??

Atoms of the noble gas elements,Group VIII A (18),do not readily bond to other elements.

What are the three primary particles found in an atom?

What was J.J.Thomson's important discovery about cathode rays in 1897?

In Mendeleev's table of the elements,the elements were arranged according to

Which one of the following electron configurations is appropriate for a ground state atom?

Which statement about the modern periodic table is FALSE?

Which best explains why an Al3+ ion is smaller than an Al atom?

Which of the following atoms and ions will have the largest radius?

Which statement correctly describes the basis for the octet rule? Ar 12233

What is the value of the mass number in the isotope 131 53 I?

For the imaginary element abdicinium (Ab),two isotopes exist.Isotope one has a mass of 40.005 amu with a relative abundance of 14.00%.Isotope two has a mass of 41.008 amu with a relative abundance of 86.00%.What is the atomic mass of the element?

Europium (Eu)is a lanthanide element.

Chemistry - Methods and Measurement

Structure and Properties of Ionic and Covalent Compounds

Calculations, chemical Changes, and the Chemical Equation

States of Matter: Gases, liquids, and Solids

Solutions

Energy,rate and Equilibrium

Acids and Bases

The Nucleus, radioactivity, and Nuclear Medicine

An Introduction to Organic Chemistry

The Unsaturated Hydrocarbons: Alkenes, alkynes, and Aromatics

Alcohols, phenols, thiols, and Ethers

Aldehydes and Ketones

Carboxylic Acids and Carboxylic Acid Derivatives

Amines and Amides

Carbohydrates

Lipids and Their Functions in Biochemical Systems

Protein Structure and Function

Enzymes

Introduction to Molecular Genetics

Carbohydrate Metabolism

Aerobic Respiration and Energy Production

Fatty Acid Metabolism

Filters

How many valence electrons are present in a chloride ion,Cl^??

Which best explains why an Al³⁺ ion is smaller than an Al atom?