Question 1

Who discovered that cathode rays consist of a stream of negative particles, electrons?

Accepted Answer

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

Question 2

What is Rutherford's important contribution to our knowledge of atomic structure?

Accepted Answer

A) Atoms contain a small, dense, positively charged nucleus, surrounded largely by empty space. 
B) The atom cannot be created, divided, destroyed, or converted to any other type of atom. 
C) Electrons in an atom have the magnetic property of spin. 
D) Electrons are confined to certain specific regions of space outside the nucleus. 
E) Electrons follow circular paths around the nucleus of an atom. 
A) Atoms contain a small, dense, positively charged nucleus, surrounded largely by empty space. 
B) The atom cannot be created, divided, destroyed, or converted to any other type of atom. 
C) Electrons in an atom have the magnetic property of spin. 
D) Electrons are confined to certain specific regions of space outside the nucleus. 
E) Electrons follow circular paths around the nucleus of an atom.

Question 3

In a neutral atom, what number equals the number of electrons?

Accepted Answer

A) atomic number 
B) mass number 
C) mass number minus the atomic number 
D) atomic number and mass number minus the atomic number are correct. 
E) None of the choices are correct. 
A) atomic number 
B) mass number 
C) mass number minus the atomic number 
D) atomic number and mass number minus the atomic number are correct. 
E) None of the choices are correct.

Question 4

Cations tend to be formed from metal atoms, while anions are formed from non-metal atoms.

Accepted Answer

A) True 
 B)False

Question 5

What term is used for the elements straddling the "staircase" boundary between the metals and nonmetals?

Accepted Answer

A) transition elements 
B) metalloids 
C) cations 
D) lanthanides 
E) noble gases 
A) transition elements 
B) metalloids 
C) cations 
D) lanthanides 
E) noble gases

Question 6

What requirement must be met in order for two electrons to coexist in the same orbital?

Accepted Answer

A) The electrons must have different energies. 
B) The electrons must have the same spin. 
C) The electrons must have opposite charges. 
D) The electrons must be in different principle energy levels. 
E) The electrons must have opposite spins. 
A) The electrons must have different energies. 
B) The electrons must have the same spin. 
C) The electrons must have opposite charges. 
D) The electrons must be in different principle energy levels. 
E) The electrons must have opposite spins.

Question 7

When a neutral atom gains one or more electrons, what type of particle is formed?

Accepted Answer

A) an anion 
B) an isotope 
C) a proton 
D) a positron 
E) a cation 
A) an anion 
B) an isotope 
C) a proton 
D) a positron 
E) a cation

Question 8

How many electrons are present in an atom of silicon?

Accepted Answer

A) 14 
B) 16 
C) 18 
D) 24 
E) 26 
A) 14 
B) 16 
C) 18 
D) 24 
E) 26

Question 9

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)

Who discovered that cathode rays consist of a stream of negative particles, electrons?

What is Rutherford's important contribution to our knowledge of atomic structure?

In a neutral atom, what number equals the number of electrons?

Cations tend to be formed from metal atoms, while anions are formed from non-metal atoms.

What term is used for the elements straddling the "staircase" boundary between the metals and nonmetals?

What requirement must be met in order for two electrons to coexist in the same orbital?

When a neutral atom gains one or more electrons, what type of particle is formed?

How many electrons are present in an atom of silicon?

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

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 Saturated Hydrocarbons

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

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

Who discovered that cathode rays consist of a stream of negative particles, electrons?

What is Rutherford's important contribution to our knowledge of atomic structure?

In a neutral atom, what number equals the number of electrons?

Cations tend to be formed from metal atoms, while anions are formed from non-metal atoms.

What term is used for the elements straddling the "staircase" boundary between the metals and nonmetals?

What requirement must be met in order for two electrons to coexist in the same orbital?

When a neutral atom gains one or more electrons, what type of particle is formed?

How many electrons are present in an atom of silicon?

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

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 Saturated Hydrocarbons

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