Question 1

The plum pudding model proposed that negatively charged electrons were held in a sphere of positive charge.

Accepted Answer

A) True 
 B)False

Question 2

The smell of the ocean is caused by atoms.

Accepted Answer

A) True 
 B)False

Question 3

A cation forms when an atom gains an electron.

Accepted Answer

A) True 
 B)False

Question 4

An isotope represented as S-34

Accepted Answer

A)  is an isotope of sodium.
B)  contains exactly 18 neutrons.
C)  has 34 protons.
D)  must have exactly 18 electrons.
E)  none of the above

Question 5

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

Accepted Answer

A)  calcium,Ca
B)  gold,Au
C)  manganese,Mn
D)  chromium,Cr
E)  potassium,P

Question 6

How many electrons are in Br-?

Accepted Answer

A)  4
B)  7
C)  34
D)  36
E)  none of the above

Question 7

Xe is a member of which family?

Accepted Answer

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

Question 8

Group 8A elements are also called:

Accepted Answer

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

Question 9

Mendeleev is best remembered for his pioneering work on determining atomic structure.

Accepted Answer

A) True 
 B)False

Question 10

Aluminum is one of the most commonly used metalloids.

Accepted Answer

A) True 
 B)False

Question 11

Which of the following statements about the nature of electrical charge is FALSE?

Accepted Answer

A)  Electrical charge is a fundamental property of protons and electrons.
B)  Positive and negative electrical charges attract each other.
C)  Positive-positive or negative-negative charges repel each other.
D)  Positive and negative charges cancel each other so that a proton and electron,when paired,are charge neutral.
E)  All of the above statements are true.

Question 12

The number of protons in the nucleus of an atom

Accepted Answer

A)  is called the atomic number.
B)  is given the symbol "Z."
C)  identifies the atom as a particular element.
D)  is the same for all isotopes of an element.
E)  all of the above

Question 13

The atom is the fundamental building block of everything we hear,feel,see,and experience.

Accepted Answer

A) True 
 B)False

Question 14

Metals are located on the left side of the periodic table.

Accepted Answer

A) True 
 B)False

Question 15

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

Question 16

The names of the elements whose symbols are Si,P,Mn,and S are respectively,

Accepted Answer

A)  silicon,potassium,magnesium,and sulfur.
B)  silver,phosphorus,magnesium,and sulfur.
C)  silicon,phosphorus,manganese,and sulfur.
D)  silicon,phosphorus,magnesium,and sulfur.
E)  silicon,potassium,magnesium,and sodium.

Question 17

An atom containing 8 protons,9 neutrons,and 8 electrons would be considered charge-neutral.

Accepted Answer

A) True 
 B)False

Question 18

Which of the following statements about atoms is FALSE?

Accepted Answer

A)  Atoms compose all matter.
B)  Atoms are responsible for the sensation of smell.
C)  Atoms are the basic building block of nature.
D)  An atom is the smallest identifiable unit of an element.
E)  All of the above statements are true.

Question 19

The elements within a group on the periodic table tend to have similar properties.

Accepted Answer

A) True 
 B)False

Question 20

Which statement reflects the results of Rutherford's gold foil experiments?

Accepted Answer

A)  Almost all of the alpha particles were deflected back in the direction from which they came.
B)  Almost all of the alpha particles sputtered gold atoms off of the surface of the foil.
C)  Almost all of the alpha particles were deflected while passing through the foil.
D)  Almost all of the alpha particles passed directly through the foil.
E)  none of the above

Exam 4: Atoms and Elements

A cation forms when an atom gains an electron.

Correct AnswerverifiedShow Answer

Xe is a member of which family?

Correct AnswerverifiedShow Answer

How many electrons are in Br-?

Correct AnswerverifiedShow Answer

The elements within a group on the periodic table tend to have similar properties.

Correct AnswerverifiedShow Answer

An isotope represented as S-34

Correct AnswerverifiedShow Answer

The number of protons in the nucleus of an atom

Correct AnswerverifiedShow Answer

Which statement reflects the results of Rutherford's gold foil experiments?

Correct AnswerverifiedShow Answer

Which of the following statements about atoms is FALSE?

Correct AnswerverifiedShow Answer

Aluminum is one of the most commonly used metalloids.

Correct AnswerverifiedShow Answer

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

Correct AnswerverifiedShow Answer

The atom is the fundamental building block of everything we hear,feel,see,and experience.

Correct AnswerverifiedShow Answer

The smell of the ocean is caused by atoms.

Correct AnswerverifiedShow Answer

The names of the elements whose symbols are Si,P,Mn,and S are respectively,

Correct AnswerverifiedShow Answer

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

Correct AnswerverifiedShow Answer

Mendeleev is best remembered for his pioneering work on determining atomic structure.

Correct AnswerverifiedShow Answer

An atom containing 8 protons,9 neutrons,and 8 electrons would be considered charge-neutral.

Correct AnswerverifiedShow Answer

Metals are located on the left side of the periodic table.

Correct AnswerverifiedShow Answer

Which of the following statements about the nature of electrical charge is FALSE?

Correct AnswerverifiedShow Answer

Group 8A elements are also called:

Correct AnswerverifiedShow Answer

The plum pudding model proposed that negatively charged electrons were held in a sphere of positive charge.

Correct AnswerverifiedShow Answer

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How many electrons are in Br^-?

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