Question 1

What is the purpose of a spectroscope?

Accepted Answer

A) It separates light into its different frequencies. 
B) It separates light into its different wavelengths. 
C) It segregates light by the different amounts of energy it contains. 
D) all of the above 
E) It is used to measure the length of spects. 
A) It separates light into its different frequencies. 
B) It separates light into its different wavelengths. 
C) It segregates light by the different amounts of energy it contains. 
D) all of the above 
E) It is used to measure the length of spects.

Question 2

List the following elements in order of increasing ionization energy: Tin, Sn; Lead, Pb; Phosphorus, P; Arsenic, As.

Accepted Answer

A) As < P < Pb < Sn 
B) Pb < Sn < As < P 
C) P < As < Sn < Pb 
D) Sn < Pb < P < As 
A) As < P < Pb < Sn 
B) Pb < Sn < As < P 
C) P < As < Sn < Pb 
D) Sn < Pb < P < As

Question 3

The shell model presented in this book is not very accurate. Why then is it presented?

Accepted Answer

A) It reminds us that the study of matter relates to the solar system. 
B) Most instructors are not good enough artists to duplicate the complicated artwork of true model on the chalk board for explanation purposes. 
C) The shell model is derived from classical physics, which is still the most widely accepted approach to understanding atomic theory. 
D) The shell model is simpler and easy to understand. 
A) It reminds us that the study of matter relates to the solar system. 
B) Most instructors are not good enough artists to duplicate the complicated artwork of true model on the chalk board for explanation purposes. 
C) The shell model is derived from classical physics, which is still the most widely accepted approach to understanding atomic theory. 
D) The shell model is simpler and easy to understand.

Question 4

If an atom has 43 electrons, 56 neutrons, and 43 protons, what is its approximate atomic mass? What is the name of this element?

Accepted Answer

A) atomic mass, 137 amu; Barium 
B) atomic mass, 99 amu; Technetium 
C) atomic mass, 99 amu; Radon 
D) atomic mass 142 amu; Einsteinium 
A) atomic mass, 137 amu; Barium 
B) atomic mass, 99 amu; Technetium 
C) atomic mass, 99 amu; Radon 
D) atomic mass 142 amu; Einsteinium

Question 5

Which of the following statements does not describe a proton?

Accepted Answer

A) It orbits around the nucleus of an atom. 
B) It has a positive charge equivalent but opposite of an electron's. 
C) It is much more massive than an electron. 
D) It is a nucleon. 
E) It is attracted to negatively charged electrical plates. 
A) It orbits around the nucleus of an atom. 
B) It has a positive charge equivalent but opposite of an electron's. 
C) It is much more massive than an electron. 
D) It is a nucleon. 
E) It is attracted to negatively charged electrical plates.

Question 6

If an atom were the size of a baseball, its nucleus would be about the size of a(n)________.

Accepted Answer

A) walnut 
B) raisin 
C) flea 
D) atom 
A) walnut 
B) raisin 
C) flea 
D) atom

What is the purpose of a spectroscope?

List the following elements in order of increasing ionization energy: Tin, Sn; Lead, Pb; Phosphorus, P; Arsenic, As.

The shell model presented in this book is not very accurate. Why then is it presented?

If an atom has 43 electrons, 56 neutrons, and 43 protons, what is its approximate atomic mass? What is the name of this element?

Which of the following statements does not describe a proton?

If an atom were the size of a baseball, its nucleus would be about the size of a(n)________.

About Science

Particles of Matter

Elements of Chemistry

The Atomic Nucleus

How Atoms Bond

How Molecules Mix

How Water Behaves

How Chemicals React

Acids and Bases in Our Environment

Oxidations and Reductions Charge the World

Organic Compounds

Nutrients of Life

Medicinal Chemistry

Optimizing Food Production

Protection Water and Air Resources

Capturing Energy

Filters

Exam 4: Subatomic Particles

What is the purpose of a spectroscope?

List the following elements in order of increasing ionization energy: Tin, Sn; Lead, Pb; Phosphorus, P; Arsenic, As.

The shell model presented in this book is not very accurate. Why then is it presented?

If an atom has 43 electrons, 56 neutrons, and 43 protons, what is its approximate atomic mass? What is the name of this element?

Which of the following statements does not describe a proton?

If an atom were the size of a baseball, its nucleus would be about the size of a(n)________.

About Science

Particles of Matter

Elements of Chemistry

The Atomic Nucleus

How Atoms Bond

How Molecules Mix

How Water Behaves

How Chemicals React

Acids and Bases in Our Environment

Oxidations and Reductions Charge the World

Organic Compounds

Nutrients of Life

Medicinal Chemistry

Optimizing Food Production

Protection Water and Air Resources

Capturing Energy

Filters