Question 1

Which of the following is NOT a correct name,symbol combination?

Accepted Answer

A) beryllium,Be 
B) phosphorus,P 
C) iron,Fe 
D) manganese,Mg 
E) silicon,Si 
A) beryllium,Be 
B) phosphorus,P 
C) iron,Fe 
D) manganese,Mg 
E) silicon,Si

Question 2

How many electrons would be in a -2 charged anion of sulfur?

Accepted Answer

A) 2 
B) 16 
C) 18 
D) 36 
E) none of the above 
A) 2 
B) 16 
C) 18 
D) 36 
E) none of the above

Question 3

When an atom gains an electron,the resulting particle is called:

Accepted Answer

A) a proton. 
B) an anion. 
C) a cation. 
D) an isotope. 
E) none of the above 
A) a proton. 
B) an anion. 
C) a cation. 
D) an isotope. 
E) none of the above

Question 4

Group 2A elements are called alkali metals.

Accepted Answer

A) True 
 B)False

Question 5

The atomic number of nitrogen is 14.01.

Accepted Answer

A) True 
 B)False

Question 6

What is the charge on the ion formed by selenium?

Accepted Answer

A) 1- 
B) 2- 
C) 1+ 
D) 2+ 
E) none of the above 
A) 1- 
B) 2- 
C) 1+ 
D) 2+ 
E) none of the above

Question 7

A cation forms when an atom gains an electron.

Accepted Answer

A) True 
 B)False

Question 8

Which of the following elements has only 12 protons?

Accepted Answer

A) C 
B) Zn 
C) Mg 
D) O 
E) none of the above 
A) C 
B) Zn 
C) Mg 
D) O 
E) none of the above

Question 9

The nucleus of an atom consists mainly of:

Accepted Answer

A) neutrons and electrons. 
B) protons and electrons. 
C) protons and neutrons. 
D) protons,neutrons,and electrons. 
E) none of the above 
A) neutrons and electrons. 
B) protons and electrons. 
C) protons and neutrons. 
D) protons,neutrons,and electrons. 
E) none of the above

Question 10

The relative amount of each different isotope in a naturally occurring sample of an element is always the same.

Accepted Answer

A) True 
 B)False

Question 11

Protons and neutrons have similar masses and similar electrical charges.

Accepted Answer

A) True 
 B)False

Question 12

Nonmetals are located where on the periodic table?

Accepted Answer

A) left side 
B) right side 
C) middle 
D) zig-zag diagonal line 
E) none of the above 
A) left side 
B) right side 
C) middle 
D) zig-zag diagonal line 
E) none of the above

Question 13

Group 2A elements are also called:

Accepted Answer

A) noble gases. 
B) halogens. 
C) alkaline earth metals. 
D) alkali metals. 
E) none of the above 
A) noble gases. 
B) halogens. 
C) alkaline earth metals. 
D) alkali metals. 
E) none of the above

Question 14

Group 7A elements are also called:

Accepted Answer

A) noble gases. 
B) halogens. 
C) alkaline earth metals. 
D) alkali metals. 
E) none of the above 
A) noble gases. 
B) halogens. 
C) alkaline earth metals. 
D) alkali metals. 
E) none of the above

Question 15

What is the charge on a calcium atom that contains 18   ?

Accepted Answer

A) 1+ 
B) 20+ 
C) 2+ 
D) 2- 
E) none of the above 
A) 1+ 
B) 20+ 
C) 2+ 
D) 2- 
E) none of the above

Question 16

The nucleus of an atom is a very small,dense region that contains over 99.9% of the atomic mass.

Accepted Answer

A) True 
 B)False

Question 17

There is very little of the element astatine (symbol = At)on earth.If astatine formed an ion,it would most likely have the charge of:

Accepted Answer

A) 1+ 
B) 1- 
C) 2+ 
D) 2- 
E) none of the above 
A) 1+ 
B) 1- 
C) 2+ 
D) 2- 
E) none of the above

Question 18

Which of the following subatomic particles has a mass of 1.67 × 10-27 kg?

Accepted Answer

A) electrons only 
B) protons only 
C) neutrons only 
D) protons and neutrons 
E) none of the above 
A) electrons only 
B) protons only 
C) neutrons only 
D) protons and neutrons 
E) none of the above

Question 19

Identify the element that is a nonmetal,a gas,and has an elemental symbol that starts with the letter "A."

Accepted Answer

A) Ac 
B) Ar 
C) Au 
D) Al 
E) none of the above 
A) Ac 
B) Ar 
C) Au 
D) Al 
E) none of the above

Question 20

An atom containing 7 protons,8 neutrons,and 7 electrons:

Accepted Answer

A) is charge-neutral. 
B) is an ion. 
C) is an oxygen atom. 
D) cannot exist. 
E) none of the above 
A) is charge-neutral. 
B) is an ion. 
C) is an oxygen atom. 
D) cannot exist. 
E) none of the above

Which of the following is NOT a correct name,symbol combination?

How many electrons would be in a -2 charged anion of sulfur?

When an atom gains an electron,the resulting particle is called:

Group 2A elements are called alkali metals.

The atomic number of nitrogen is 14.01.

What is the charge on the ion formed by selenium?

A cation forms when an atom gains an electron.

Which of the following elements has only 12 protons?

The nucleus of an atom consists mainly of:

The relative amount of each different isotope in a naturally occurring sample of an element is always the same.

Protons and neutrons have similar masses and similar electrical charges.

Nonmetals are located where on the periodic table?

Group 2A elements are also called:

Group 7A elements are also called:

What is the charge on a calcium atom that contains 18 ?

The nucleus of an atom is a very small,dense region that contains over 99.9% of the atomic mass.

There is very little of the element astatine (symbol = At)on earth.If astatine formed an ion,it would most likely have the charge of:

Which of the following subatomic particles has a mass of 1.67 × 10^-27 kg?

Identify the element that is a nonmetal,a gas,and has an elemental symbol that starts with the letter "A."

An atom containing 7 protons,8 neutrons,and 7 electrons:

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Exam 4: Atoms and Elements

Which of the following is NOT a correct name,symbol combination?

How many electrons would be in a -2 charged anion of sulfur?

When an atom gains an electron,the resulting particle is called:

Group 2A elements are called alkali metals.

The atomic number of nitrogen is 14.01.

What is the charge on the ion formed by selenium?

A cation forms when an atom gains an electron.

Which of the following elements has only 12 protons?

The nucleus of an atom consists mainly of:

The relative amount of each different isotope in a naturally occurring sample of an element is always the same.

Protons and neutrons have similar masses and similar electrical charges.

Nonmetals are located where on the periodic table?

Group 2A elements are also called:

Group 7A elements are also called:

What is the charge on a calcium atom that contains 18 ?

The nucleus of an atom is a very small,dense region that contains over 99.9% of the atomic mass.

There is very little of the element astatine (symbol = At)on earth.If astatine formed an ion,it would most likely have the charge of:

Which of the following subatomic particles has a mass of 1.67 × 10-27 kg?

Identify the element that is a nonmetal,a gas,and has an elemental symbol that starts with the letter "A."

An atom containing 7 protons,8 neutrons,and 7 electrons:

The Chemical World

Measurement and Problem Solving

Matter and Energy

Molecules and Compounds

Chemical Composition

Chemical Reactions

Quantities in Chemical Reactions

Electrons in Atoms and the Periodic Table

Chemical Bonding

Gases

Liquids, solids, and Intermolecular Forces

Solutions

Acids and Bases

Chemical Equilibrium

Oxidation and Reduction

Radioactivity and Nuclear Chemistry

Organic Chemistry

Biochemistry

Filters

Which of the following subatomic particles has a mass of 1.67 × 10^-27 kg?