Lesson 9 Test: Ionization Energy

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| By Corrys

Corrys

Community Contributor

Quizzes Created: 19 | Total Attempts: 9,773

Questions: 11 | Attempts: 208 | Updated: Apr 24, 2024

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Read each statement carefully. Determine whether the statement is true or false.

Questions and Answers

1.

Valence electrons are those electrons in the outermost layers of an atom.
- A.
  
  True
- B.
  
  False
Correct Answer
A. True

Explanation
Valence electrons are the electrons located in the outermost energy level of an atom. These electrons are involved in chemical bonding and determine the reactivity and properties of an element. Therefore, the statement "Valence electrons are those electrons in the outermost layers of an atom" is true.

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2.

Sodium family members have two valence electrons.
- A.
  
  True
- B.
  
  False
Correct Answer
B. False

Explanation
The statement is false because sodium belongs to the alkali metal family, which only has one valence electron.

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3.

The element Calcium has two valence neutrons.
- A.
  
  True
- B.
  
  False
Correct Answer
B. False

Explanation
The statement is incorrect. Calcium is an element with 20 protons in its nucleus, which means it has 20 electrons as well to maintain a neutral charge. Neutrons, on the other hand, do not contribute to the element's charge or valence. The number of neutrons in calcium can vary, as it can have different isotopes with different numbers of neutrons, but it does not have two valence neutrons.

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0
1
4.

The element Bromine is a member of halogen family and has six valence electrons.
- A.
  
  True
- B.
  
  False
Correct Answer
B. False

Explanation
Bromine is a member of the halogen family and has seven valence electrons, not six. Therefore, the statement is false.

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5.

Sometimes atoms will lose electrons to form bonds with other atoms. The energy required to move electrons is called ionization energy.
- A.
  
  True
- B.
  
  False
Correct Answer
A. True

Explanation
The explanation for the given correct answer is that when atoms lose electrons to form bonds with other atoms, the energy required to move those electrons is called ionization energy. This energy is needed to overcome the attraction between the negatively charged electrons and the positively charged nucleus of the atom. Therefore, the statement is true.

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6.

Members of the noble gas family have very low ionization energy values that makes them very non-reactive.
- A.
  
  True
- B.
  
  False
Correct Answer
B. False

Explanation
Members of the noble gas family have very high ionization energy values, not low. This high ionization energy makes them very non-reactive, as they have a stable electron configuration and do not readily gain or lose electrons. Therefore, the correct answer is False.

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7.

Members of the sodium family have very low ionization energy values that makes them very non-reactive when compared to other elements on the periodic table of elements.
- A.
  
  True
- B.
  
  False
Correct Answer
B. False

Explanation
The statement in the question is incorrect. Members of the sodium family, also known as alkali metals, have low ionization energy values, which means they are highly reactive, not non-reactive. These elements readily lose their outermost electron to form positive ions, making them highly reactive with other elements. Therefore, the correct answer is False.

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8.

Lithium is a member of the sodium family and has a very low ionization energy value. This makes lithium a very reactive element.
- A.
  
  True
- B.
  
  False
Correct Answer
A. True

Explanation
Lithium is a member of the sodium family and has a very low ionization energy value, meaning it requires very little energy to remove an electron from a lithium atom. This low ionization energy makes lithium highly reactive, as it readily forms compounds and reacts with other elements. Therefore, the statement that lithium is a very reactive element is true.

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9.

Atoms of the elements Oxygen and Sulfur have six valence electrons.
- A.
  
  True
- B.
  
  False
Correct Answer
A. True

Explanation
Oxygen and Sulfur are both elements from Group 16 of the periodic table, also known as the oxygen family. Elements in this group typically have six valence electrons. Valence electrons are the electrons in the outermost energy level of an atom and are responsible for the chemical properties of the element. Therefore, it is true that atoms of Oxygen and Sulfur have six valence electrons.

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10.

All members of noble gas family have eight valence electrons and very high ionization energy values.
- A.
  
  True
- B.
  
  False
Correct Answer
B. False

Explanation
The members of the noble gas family do have eight valence electrons, but they do not necessarily have very high ionization energy values. While noble gases generally have high ionization energies compared to other elements, this statement is not entirely accurate as there are exceptions within the noble gas family. Therefore, the correct answer is False.

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11.

Without looking at a periodic table, list all members of the noble gas family. There are 6 of these, spell the name out, begin with capital letter and put a space between each. No punctuation. Check your spelling. Use your mnemonic aid!

Correct Answer
Helium Neon Argon Krypton Xenon Radon

Explanation
The explanation for the given correct answer is that the noble gas family consists of six members: Helium, Neon, Argon, Krypton, Xenon, and Radon. These elements are known as noble gases because they have a full outer electron shell, making them stable and unreactive.

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4

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Apr 24, 2024

Quiz Edited by
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Jul 30, 2013

Quiz Created by
Corrys

Lesson 9 Test: Ionization Energy

Valence electrons are those electrons in the outermost layers of an atom.

Sodium family members have two valence electrons.

The element Calcium has two valence neutrons.

The element Bromine is a member of halogen family and has six valence electrons.

Sometimes atoms will lose electrons to form bonds with other atoms. The energy required to move electrons is called ionization energy.

Members of the noble gas family have very low ionization energy values that makes them very non-reactive.

Members of the sodium family have very low ionization energy values that makes them very non-reactive when compared to other elements on the periodic table of elements.

Lithium is a member of the sodium family and has a very low ionization energy value. This makes lithium a very reactive element.

Atoms of the elements Oxygen and Sulfur have six valence electrons.

All members of noble gas family have eight valence electrons and very high ionization energy values.

Without looking at a periodic table, list all members of the noble gas family. There are 6 of these, spell the name out, begin with capital letter and put a space between each. No punctuation. Check your spelling. Use your mnemonic aid!