Question 1

Which of the following statements is correct?

Accepted Answer

A)   The three isotopes of carbon contain the same number of protons and neutrons, but different numbers of electrons.
B)   The three isotopes of carbon contain the same number of protons and electrons, but different numbers of neutrons.
C)   The three isotopes of carbon contain the same number of electrons and neutrons, but different numbers of protons.
D)   The three isotopes of carbon contain the same number of protons, neutrons, and electrons.
E)   The three isotopes of carbon contain the same number of protons, but different numbers of electrons and neutrons.

Question 2

Nitrogen has an atomic number of 7. Which of the following correctly depicts the electronic configuration of an atom of nitrogen?

Accepted Answer

A)   
B)   
C)   
D)

Question 3

Match the following particles to the electrical charges they carry.
-Neutron

Accepted Answer

A)   Positive
B)   Negative
C)   Neutral

Question 4

Which of the following is not an element? Select all that apply.

Accepted Answer

A)   Oxygen
B)   Water
C)   Nitrogen
D)   Carbon dioxide

Question 5

Rank the following sub-shells in order of energy, with 1 being the lowest-energy, and 4 being the highest-energy

Accepted Answer

a. 2s = 2
b. 3p = 4
c. 2p = 3
d. 1s = 1

Question 6

The 3d sub-shell comprises how many orbitals?

Accepted Answer

A)   One
B)   Two
C)   Three
D)   Four
E)   Five

Question 7

An atom's nucleus contains which of the following particles? Select all that apply.

Accepted Answer

A)   Ions
B)   Protons
C)   Electrons
D)   Neutrons

Question 8

An atom of fluorine has an atomic number of 9 and a mass number of 19. Which of the following statements is correct?

Accepted Answer

A)   An atom of fluorine has 9 protons, 9 electrons, and 10 neutrons.
B)   An atom of fluorine has 9 protons, 9 electrons, and 9 neutrons.
C)   An atom of fluorine has 9 protons, 10 electrons, and 9 neutrons.
D)   An atom of fluorine has 10 protons, 9 electrons, and 9 neutrons.
E)   An atom of fluorine has 9 protons, 9 electrons, and 19 neutrons.

Question 9

An element's mass number tells us which of the following?

Accepted Answer

A)   The number of protons in an atom of that element.
B)   The number of protons + electrons in an atom of that element.
C)   The number of electrons in an atom of that element.
D)   The number of protons + neutrons in an atom of that element.
E)   The number of neutrons in an atom of that element.

Question 10

Match the following particles to the electrical charges they carry.
-Electron

Accepted Answer

A)   Positive
B)   Negative
C)   Neutral

Question 11

Match the following particles to the electrical charges they carry.
-Proton

Accepted Answer

A)   Positive
B)   Negative
C)   Neutral

Question 12

Noting that chlorine has an atomic number of 17, which of the following statements are false? Select any that apply.

Accepted Answer

A)   An atom of chlorine has 17 electrons.
B)   Chlorine's valence shell is shell 2.
C)   The electronic configuration for chlorine is 1s2 2s2 2p6 3s2 3p5
D)   Chlorine must gain 1 electron to achieve a full valence shell.
E)   The chloride ion carries a charge of +1 B,E

Question 13

Rank the following elements according to how readily they will form anions, with 1 = least readily, and 4 = most readily.

Accepted Answer

a. Iron = 3
b. Zinc ...

Question 14

An oxygen ion carries what electrical charge?

Accepted Answer

A)   -1
B)   +1
C)   +2
D)   No charge
E)   -2 E

Question 15

Shell 2 can hold a maximum of how many electrons?

Accepted Answer

A)   2
B)   4
C)   6
D)   8
E)   10

Exam 2: Atoms: The Foundations of Life

Which of the following statements is correct?

Correct Answer
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Nitrogen has an atomic number of 7. Which of the following correctly depicts the electronic configuration of an atom of nitrogen?

Correct Answer
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Match the following particles to the electrical charges they carry. -Neutron

Correct Answer
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Which of the following is not an element? Select all that apply.

Correct Answer
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Rank the following sub-shells in order of energy, with 1 being the lowest-energy, and 4 being the highest-energy

Correct Answer
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a. 2s = 2 b. 3p = 4 c. 2p = 3 d. 1s = 1

The 3d sub-shell comprises how many orbitals?

Correct Answer
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An atom's nucleus contains which of the following particles? Select all that apply.

Correct Answer
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An atom of fluorine has an atomic number of 9 and a mass number of 19. Which of the following statements is correct?

Correct Answer
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An element's mass number tells us which of the following?

Correct Answer
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Match the following particles to the electrical charges they carry. -Electron

Correct Answer
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Match the following particles to the electrical charges they carry. -Proton

Correct Answer
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Noting that chlorine has an atomic number of 17, which of the following statements are false? Select any that apply.

Correct Answer
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B,E

Rank the following elements according to how readily they will form anions, with 1 = least readily, and 4 = most readily.

Correct Answer
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a. Iron = 3
b. Zinc ...
View Answer

An oxygen ion carries what electrical charge?

Correct Answer
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E

Shell 2 can hold a maximum of how many electrons?

Correct Answer
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Exam 2: Atoms: The Foundations of Life

Which of the following statements is correct?

Correct AnswerverifiedShow Answer

Nitrogen has an atomic number of 7. Which of the following correctly depicts the electronic configuration of an atom of nitrogen?

Correct AnswerverifiedShow Answer

Match the following particles to the electrical charges they carry. -Neutron

Correct AnswerverifiedShow Answer

Which of the following is not an element? Select all that apply.

Correct AnswerverifiedShow Answer

Rank the following sub-shells in order of energy, with 1 being the lowest-energy, and 4 being the highest-energy

Correct Answerverifieda. 2s = 2 b. 3p = 4 c. 2p = 3 d. 1s = 1

The 3d sub-shell comprises how many orbitals?

Correct AnswerverifiedShow Answer

An atom's nucleus contains which of the following particles? Select all that apply.

Correct AnswerverifiedShow Answer

An atom of fluorine has an atomic number of 9 and a mass number of 19. Which of the following statements is correct?

Correct AnswerverifiedShow Answer

An element's mass number tells us which of the following?

Correct AnswerverifiedShow Answer

Match the following particles to the electrical charges they carry. -Electron

Correct AnswerverifiedShow Answer

Match the following particles to the electrical charges they carry. -Proton

Correct AnswerverifiedShow Answer

Noting that chlorine has an atomic number of 17, which of the following statements are false? Select any that apply.

Correct AnswerverifiedB,E

Rank the following elements according to how readily they will form anions, with 1 = least readily, and 4 = most readily.

Correct Answerverifieda. Iron = 3b. Zinc ...View AnswerShow Answer

An oxygen ion carries what electrical charge?

Correct AnswerverifiedE

Shell 2 can hold a maximum of how many electrons?

Correct AnswerverifiedShow Answer

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a. 2s = 2 b. 3p = 4 c. 2p = 3 d. 1s = 1

Correct Answer
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B,E

Correct Answer
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a. Iron = 3
b. Zinc ...
View Answer

Correct Answer
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E

Correct Answer
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