Question 1

What are the chemical characteristics of the alkaline earth metals of the periodic table?

Accepted Answer

The alkaline earth metals include beryll...

Question 2

Predict what would happen if the electrical charges on an atom were reversed. In other words, what if protons were negative and electrons were positive? Would the periodic table still be viable as a predictive model?

Accepted Answer

It is likely that the periodic...

Question 3

Summarize the evolution of ideas and theories about atoms from the Greek philosophers to the present day.

Accepted Answer

The Greek philosopher Democritus suggest...

Question 4

An atom that becomes an ion always changes from having an equal number of protons and electrons to having

Accepted Answer

A)   more neutrons than protons.
B)   an electrical charge, either positive or negative.
C)   more electrons than protons.
D)   more protons than electrons.
E)   an equal number of protons, neutrons, and electrons.F) A) and B)
G) D) and E)

Question 5

What is the Pauli exclusion principle? Explain.

Accepted Answer

This principle says that no two electron...

Question 6

Mendeleev's periodic table was organized according to rules of scientific method. Which statement below follows those rules?

Accepted Answer

A)   The periodic table made predictions that could be tested.
B)   Only scientists could understand the periodic table.
C)   Information that refuted Mendeleev's hypothesis was ignored.
D)   Mendeleev's listed the elements alphabetically.
E)   The periodic table has not changed in 100 years.F) A) and D)
G) A) and C)

Question 7

In the periodic table, elements are arranged in order of

Accepted Answer

A)   atomic number.
B)   number of neutrons.
C)   number of electrons minus one.
D)   atomic size.
E)   the alphabet.F) A) and B)
G) B) and E)

Question 8

Physical principles predict that the solar system model of the atom cannot be viable because

Accepted Answer

A)   atoms would be constantly emitting energy.
B)   atoms would be constantly absorbing energy.
C)   compounds could not be easily formed.
D)   atoms would not have symmetrical shapes.
E)   the law of thermodynamics would not work.F) A) and D)
G) None of the above

Question 9

In the periodic table of the elements, the heaviest element is located

Accepted Answer

A)   at the top right corner.
B)   in the center of the chart.
C)   at the lower right corner.
D)   at the top left corner.
E)   at the lower left corner.F) A) and C)
G) A) and B)

Question 10

What was the contribution of the English physicist Joseph John Thompson to the study of atoms and what was his relationship to Ernest Rutherford?

Accepted Answer

Thompson was the first to unam...

Exam 8: The Atom: Why Are There so Many Different Materials in the World

What was the contribution of the English physicist Joseph John Thompson to the study of atoms and what was his relationship to Ernest Rutherford?

Correct Answer
verified
Thompson was the first to unam...
View Answer

An atom that becomes an ion always changes from having an equal number of protons and electrons to having

Correct Answer
verified

Predict what would happen if the electrical charges on an atom were reversed. In other words, what if protons were negative and electrons were positive? Would the periodic table still be viable as a predictive model?

Correct Answer
verified
It is likely that the periodic...
View Answer

What are the chemical characteristics of the alkaline earth metals of the periodic table?

Correct Answer
verified
The alkaline earth metals include beryll...
View Answer

Mendeleev's periodic table was organized according to rules of scientific method. Which statement below follows those rules?

Correct Answer
verified

Physical principles predict that the solar system model of the atom cannot be viable because

Correct Answer
verified

Summarize the evolution of ideas and theories about atoms from the Greek philosophers to the present day.

Correct Answer
verified
The Greek philosopher Democritus suggest...
View Answer

In the periodic table of the elements, the heaviest element is located

Correct Answer
verified

In the periodic table, elements are arranged in order of

Correct Answer
verified

What is the Pauli exclusion principle? Explain.

Correct Answer
verified
This principle says that no two electron...
View Answer

Exam 8: The Atom: Why Are There so Many Different Materials in the World

What was the contribution of the English physicist Joseph John Thompson to the study of atoms and what was his relationship to Ernest Rutherford?

Correct AnswerverifiedThompson was the first to unam...View AnswerShow Answer

An atom that becomes an ion always changes from having an equal number of protons and electrons to having

Correct AnswerverifiedShow Answer

Predict what would happen if the electrical charges on an atom were reversed. In other words, what if protons were negative and electrons were positive? Would the periodic table still be viable as a predictive model?

Correct AnswerverifiedIt is likely that the periodic...View AnswerShow Answer

What are the chemical characteristics of the alkaline earth metals of the periodic table?

Correct AnswerverifiedThe alkaline earth metals include beryll...View AnswerShow Answer

Mendeleev's periodic table was organized according to rules of scientific method. Which statement below follows those rules?

Correct AnswerverifiedShow Answer

Physical principles predict that the solar system model of the atom cannot be viable because

Correct AnswerverifiedShow Answer

Summarize the evolution of ideas and theories about atoms from the Greek philosophers to the present day.

Correct AnswerverifiedThe Greek philosopher Democritus suggest...View AnswerShow Answer

In the periodic table of the elements, the heaviest element is located

Correct AnswerverifiedShow Answer

In the periodic table, elements are arranged in order of

Correct AnswerverifiedShow Answer

What is the Pauli exclusion principle? Explain.

Correct AnswerverifiedThis principle says that no two electron...View AnswerShow Answer

Correct Answer
verified
Thompson was the first to unam...
View Answer

Correct Answer
verified

Correct Answer
verified
It is likely that the periodic...
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Correct Answer
verified
The alkaline earth metals include beryll...
View Answer

Correct Answer
verified

Correct Answer
verified

Correct Answer
verified
The Greek philosopher Democritus suggest...
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Correct Answer
verified

Correct Answer
verified

Correct Answer
verified
This principle says that no two electron...
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