Complete Ca(s) + 2 H2O →

A) Ca2+ + 2 OH- + H2(g) B) CaH2(s) + O2(g) + H2(g) C) Ca2+ + O2(g) + 2 H2(g) D) CaH2(s) + 2 OH- E) no reaction A) Ca2+ + 2 OH- + H2(g) B) CaH2(s) + O2(g) + H2(g) C) Ca2+ + O2(g) + 2 H2(g) D) CaH2(s) + 2 OH- E) no reaction

If the formula of an oxide is X2O3, what is the formula of the chloride of X?

A) XCl B) X3Cl C) XCl3 D) XCl6 E) X2Cl3 A) XCl B) X3Cl C) XCl3 D) XCl6 E) X2Cl3

Complete Li2O(s) + H2O →

A) 2 LiO + H2 B) 2 Li+ + 2OH- C) 2 LiH + O2 D) 2 LiOH E) no reaction A) 2 LiO + H2 B) 2 Li+ + 2OH- C) 2 LiH + O2 D) 2 LiOH E) no reaction

Exam 9: The Periodic Table and Some Atomic Properties

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Why was Moseley so sure from his X-ray work that there were no other undiscovered elements besides the three that he predicted in the range of atomic numbers 13-79?

(Multiple Choice)

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Question 81

Choose the INCORRECT statement.

(Multiple Choice)

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Question 82

Complete Ca(s) + 2 H₂O →

(Multiple Choice)

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Question 83

Which of the following species is diamagnetic?

(Multiple Choice)

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Question 84

The covalent radius, metallic radius, and the ionic radius are all equal.

(True/False)

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Question 85

The inner transition elements include the actinides and the lanthanides.

(True/False)

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Question 86

Which of the following has the smallest value of the first ionization energy: Ar, Cs, N, Cu, Rb?

(Multiple Choice)

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Question 87

Which comparison of atomic and/or ionic radii is correct?

(Multiple Choice)

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Question 88

If the formula of an oxide is X₂O₃, what is the formula of the chloride of X?

(Multiple Choice)

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Question 89

Which of the following has the largest atomic radius?

(Multiple Choice)

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Question 90

Choose a basic oxide.

(Multiple Choice)

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Question 91

A is the sequence Na, Mg, Al, Si, and P. B is the sequence He, Ne, Ar, Kr, and Xe. Which statement below is true?

(Multiple Choice)

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Question 92

Arrange the following in order of increasing ionization energy: Li, Cs, K.

(Multiple Choice)

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Question 93

Complete Li₂O(s) + H₂O →

(Multiple Choice)

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Question 94

Arrange the following elements in order of increasing ionization energy: Cs, Sc, Mn.

(Multiple Choice)

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Question 95

The ion represented as has:

(Multiple Choice)

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Question 96

Showing 81 - 96 of 96

Exam 9: The Periodic Table and Some Atomic Properties

Why was Moseley so sure from his X-ray work that there were no other undiscovered elements besides the three that he predicted in the range of atomic numbers 13-79?

Choose the INCORRECT statement.

Complete Ca(s) + 2 H2O →

Which of the following species is diamagnetic?

The covalent radius, metallic radius, and the ionic radius are all equal.

The inner transition elements include the actinides and the lanthanides.

Which of the following has the smallest value of the first ionization energy: Ar, Cs, N, Cu, Rb?

Which comparison of atomic and/or ionic radii is correct?

If the formula of an oxide is X2O3, what is the formula of the chloride of X?

Which of the following has the largest atomic radius?

Choose a basic oxide.

A is the sequence Na, Mg, Al, Si, and P. B is the sequence He, Ne, Ar, Kr, and Xe. Which statement below is true?

Arrange the following in order of increasing ionization energy: Li, Cs, K.

Complete Li2O(s) + H2O →

Arrange the following elements in order of increasing ionization energy: Cs, Sc, Mn.

The ion represented as has:

Matter - Its Properties and Measurement

Atoms and the Atomic Theory

Chemical Compounds

Chemical Reactions

Introduction to Reactions in Aqueous Solutions

Gases

Thermochemistry

Electrons in Atoms

Chemical Bonding I: Basic Concepts

Chemical Bonding II: Additional Aspects

Intermolecular Forces: Liquids and Solids

Solutions and Their Physical Properties

Chemical Kinetics

Principles of Chemical Equilibrium

Acids and Bases

Additional Aspects of Acid-Base Equilibria

Solubility and Complex-Ion Equilibria

Spontaneous Change: Entropy and Free Energy

Electrochemistry

Main Group Elements I: Groups 1, 2, 13, and 14

Main Group Elements II: Groups 18, 17, 16, 15, and Hydrogen

The Transition Elements

Complex Ions and Coordination Compounds

Nuclear Chemistry 1-41

Structures of Organic Compounds

Reactions of Organic Compounds

Chemistry of the Living State

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Complete Ca(s) + 2 H₂O →

If the formula of an oxide is X₂O₃, what is the formula of the chloride of X?

Complete Li₂O(s) + H₂O →