Question 1

The atomic radius of Cu is _____ than the atomic radius of As.

Accepted Answer

smaller

Question 2

Write a note on John Newlands "octaves" classification.

Accepted Answer

The English chemist John Newlands (1838-1898), hypothesizing that the chemistry of the elements might be related to their masses, arranged the known elements in order of increasing atomic mass and discovered that every seventh element had similar properties. Newlands therefore suggested that the elements could be classified into octaves, corresponding to the horizontal rows in the main group elements. Newlands's "law of octaves", though did not seem to work for elements heavier than calcium.

Question 3

Which halogen does not have a positive oxidation state in any of its compounds?

Accepted Answer

A)  Fluorine 
B)  Chlorine 
C)  Bromine 
D)  Iodine 
E)  Astatine 
A)  Fluorine 
B)  Chlorine 
C)  Bromine 
D)  Iodine 
E)  Astatine A

Question 4

In the Mendeleev's periodic table, if bromine was a newly discovered element, it would have been called eka-chlorine.

Accepted Answer

A) True 
 B)False

Question 5

Which of the following elements is used by the body to transfer multiple electrons one at a time?

Accepted Answer

A)  Molybdenum 
B)  Ferrous 
C)  Sodium 
D)  Copper 
E)  Potassium 
A)  Molybdenum 
B)  Ferrous 
C)  Sodium 
D)  Copper 
E)  Potassium

Question 6

What is the valence electron configuration of alkali metals?

Accepted Answer

A)  ns1 
B)  ns2 
C)  np1 
D)  np2 
E)  (n - 1)d1 
A)  ns1 
B)  ns2 
C)  np1 
D)  np2 
E)  (n - 1)d1

Question 7

According to the Newlands arrangement of elements into octaves, copper would belong to the same octave as _____.

Accepted Answer

A)  potassium 
B)  oxygen 
C)  fluorine 
D)  carbon 
E)  calcium 
A)  potassium 
B)  oxygen 
C)  fluorine 
D)  carbon 
E)  calcium

Question 8

The valence electron configuration of the elements in group 13 is _____.

Accepted Answer

The answer of The valence electron configuration of the elements...

Question 9

Define the different types of atomic radii measured in different types of molecules. How does atomic radii vary across a row in the periodic table?

Accepted Answer

The covalent atomic radius (r_cov) is half t

Question 10

Chlorine, _____, and iodine constitute a triad.

Accepted Answer

The answer of Chlorine, _____, and iodine constitute a triad....

Question 11

In the periodic table, atomic radii increase from top to bottom down a column.

Accepted Answer

A) True 
 B)False

Question 12

What is the general trend in electron affinities of elements down a group? What are the exceptions to this trend?

Accepted Answer

Electron affinities of the main-group el

Question 13

Based on their position in the periodic table, which of the following elements would have the highest fourth ionization energy?

Accepted Answer

A)  Aluminum 
B)  Silicon 
C)  Phosphorus 
D)  Sulfur 
E)  Chlorine 
A)  Aluminum 
B)  Silicon 
C)  Phosphorus 
D)  Sulfur 
E)  Chlorine

Question 14

Na, Mg, K, Ca, Cl, and P are all _____.

Accepted Answer

The answer of Na, Mg, K, Ca, Cl, and P...

Question 15

Transition metals have multiple oxidation states that are separated by only one electron.

Accepted Answer

A) True 
 B)False

Question 16

The outermost electrons in xenon feel a greater amount of electronic shielding as compared to those of cadmium.

Accepted Answer

A) True 
 B)False

Question 17

_____ are complex assemblies of proteins which transport ions across the cell membrane using substantial amounts of energy.

Accepted Answer

The answer of _____ are complex assemblies of proteins which...

Question 18

The ionization energy of an element is always positive.

Accepted Answer

A) True 
 B)False

Question 19

The elements of _____ are called the alkali metals.

Accepted Answer

A)  group 1 
B)  group 3 
C)  group 13 
D)  group 17 
E)  group 18 
A)  group 1 
B)  group 3 
C)  group 13 
D)  group 17 
E)  group 18

Question 20

The noble gases have the highest molar volumes among all the other groups.

Accepted Answer

A) True 
 B)False

Exam 7: The Periodic Table and Periodic Trends

The atomic radius of Cu is _____ than the atomic radius of As.

Write a note on John Newlands "octaves" classification.

Which halogen does not have a positive oxidation state in any of its compounds?

In the Mendeleev's periodic table, if bromine was a newly discovered element, it would have been called eka-chlorine.

Which of the following elements is used by the body to transfer multiple electrons one at a time?

What is the valence electron configuration of alkali metals?

According to the Newlands arrangement of elements into octaves, copper would belong to the same octave as _____.

The valence electron configuration of the elements in group 13 is _____.

Define the different types of atomic radii measured in different types of molecules. How does atomic radii vary across a row in the periodic table?

Chlorine, _____, and iodine constitute a triad.

In the periodic table, atomic radii increase from top to bottom down a column.

What is the general trend in electron affinities of elements down a group? What are the exceptions to this trend?

Based on their position in the periodic table, which of the following elements would have the highest fourth ionization energy?

Na, Mg, K, Ca, Cl, and P are all _____.

Transition metals have multiple oxidation states that are separated by only one electron.

The outermost electrons in xenon feel a greater amount of electronic shielding as compared to those of cadmium.

_____ are complex assemblies of proteins which transport ions across the cell membrane using substantial amounts of energy.

The ionization energy of an element is always positive.

The elements of _____ are called the alkali metals.

The noble gases have the highest molar volumes among all the other groups.

Introduction to Chemistry

Molecules, Ions, and Chemical Formulas

Chemical Reactions

Reactions in Aqueous Solution

Energy Changes in Chemical Reactions

The Structure of Atoms

Ionic Versus Covalent Bonding

Molecular Geometry and Covalent Bonding Models

Gases

Liquids

Solids

Solutions

Chemical Kinetics

Chemical Equilibrium

Aqueous Acidbase Equilibriums

Solubility and Complexation Equilibriums

Chemical Thermodynamics

Electrochemistry

Nuclear Chemistry

Periodic Trends and the S-Block Elements

The P-Block Elements

The D-Block Elements

Organic Compounds

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