A crystal of sodium chloride is held together by:

the attraction of oppositely charged ions

positive ions in a "sea of electrons"

How does a magnesium atom form a bond with an oxygen atom?

by giving one pair of electrons to the oxygen atom.

by sharing one pair of electrons, both electrons provided by the magnesium atom.

by sharing two pairs of electrons, both pairs provided by the oxygen atom.

by sharing two pairs of electrons, each atom donating one pair of electrons.

Ionic Bonding Exam: Quiz!

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| By Rrussell

Rrussell

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Quizzes Created: 2 | Total Attempts: 1,212

Questions: 19 | Attempts: 538 | Updated: Jan 22, 2024

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Questions and Answers

1.

The atomic number of magnesium is 12. When magnesium reacts to form an ionic compound, the electronic configuration of the magnesium ion formed is
- A.
  
  2, 8
- B.
  
  2, 8, 1
- C.
  
  2, 8, 2
- D.
  
  2, 8, 3
Correct Answer
A. 2, 8

Explanation
Initially, Mg has 12 electrons. When it forms a Mg ion, it loses 2 electrons to achieve a noble gas configuration of 2, 8.

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2.

A crystal of sodium chloride is held together by:
- A.
  
  Covalent bonds
- B.
  
  Double bonds
- C.
  
  Positive ions in a "sea of electrons"
- D.
  
  The attraction of oppositely charged ions
Correct Answer
D. The attraction of oppositely charged ions

Explanation
Sodium chloride is ionic since sodium is a metal and chlorine is a non-metal. Sodium will transfer one electron to chlorine, forming Na+ and Cl- ions. Ionic compounds are held together by the strong electrostatic forces of attraction between the negative and positive ions.

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3.

How does a magnesium atom form a bond with an oxygen atom?
- A.
  
  By giving one pair of electrons to the oxygen atom.
- B.
  
  By sharing one pair of electrons, both electrons provided by the magnesium atom.
- C.
  
  By sharing two pairs of electrons, both pairs provided by the oxygen atom.
- D.
  
  By sharing two pairs of electrons, each atom donating one pair of electrons.
Correct Answer
A. By giving one pair of electrons to the oxygen atom.

Explanation
Magnesium will transfer two electrons from itself to an oxygen atom. So that Mg and O both achieve noble gas configuration of 2, 8.

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4.

Which pair of elements will combine to form an ionic compound?
- A.
  
  Carbon and chlorine
- B.
  
  Fluorine and sodium
- C.
  
  Hydrogen and oxygen
- D.
  
  Oxygen and carbon
Correct Answer
B. Fluorine and sodium

Explanation
An ionic compound is formed between a metal and a non-metal.

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5.

Element X has an electronic structure 2, 8, 8, 1. Element Y has an electronic structure of 2, 8, 6. What is the chemical formula of the compound formed between X and Y?
- A.
  
  X2Y
- B.
  
  XY2
- C.
  
  XY
- D.
  
  XY3
Correct Answer
A. X2Y

Explanation
Element X can give away 1 electron each. Y needs to gain 2 electrons. Hence, Y needs 2 of element X. Hence, the formula is X2Y.

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6.

What is the formula for Magnesium Oxide?

Correct Answer
MgO

Explanation
The formula for Magnesium Oxide is MgO. This is because Magnesium (Mg) has a +2 charge, while Oxygen (O) has a -2 charge. In order to balance the charges, one Mg atom combines with one O atom, resulting in the formula MgO.

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7.

What is the formula for Aluminum Nitride?

Correct Answer
AlN

Explanation
The formula for Aluminum Nitride is AlN.

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8.

What is the formula for Lithium Iodide?

Correct Answer
LiI

Explanation
The formula for Lithium Iodide is LiI.

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9.

What is the formula for Sodium Fluoride?

Correct Answer
NaF

Explanation
The correct answer is NaF, which represents the chemical formula for Sodium Fluoride. Sodium Fluoride is an ionic compound consisting of one sodium ion (Na+) and one fluoride ion (F-). The symbol Na represents the element sodium, while F represents the element fluorine. When these two elements combine, they form Sodium Fluoride, which is commonly used in toothpaste and water fluoridation to prevent tooth decay.

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10.

What is the formula for Beryllium Oxide?

Correct Answer
BeO

Explanation
Beryllium Oxide is represented by the chemical formula BeO.

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11.

What is the name of the compound AlCl₃?

Correct Answer
Aluminum Chloride

Explanation
AlCl3 is the chemical formula for Aluminum Chloride. It is a compound composed of one aluminum atom and three chlorine atoms. Aluminum Chloride is commonly used in various industrial processes, such as in the production of dyes and pharmaceuticals. It is also used as a catalyst in organic reactions and as an electrolyte in batteries. Therefore, the correct answer for the name of the compound AlCl3 is Aluminum Chloride.

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12.

What is the name of the compound Mg₃N₂?

Correct Answer
Magnesium Nitride

Explanation
The compound Mg3N2 is named magnesium nitride because it consists of three magnesium (Mg) atoms and two nitrogen (N) atoms. In chemical nomenclature, the name of an ionic compound is derived from the names of its constituent elements, with the cation (in this case, magnesium) named first and the anion (nitride) named second. Therefore, the correct name for Mg3N2 is magnesium nitride.

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13.

What is the name of the compound CaO?

Correct Answer
Calcium Oxide

Explanation
Calcium Oxide is the correct name for the compound CaO. Calcium is a metal and oxygen is a non-metal, so the compound is formed by the combination of these two elements. The name "Calcium Oxide" follows the naming convention for binary compounds, where the name of the metal element (calcium) is followed by the name of the non-metal element (oxide).

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14.

What is the name of the compound HI?

Correct Answer
Hydrogen Iodide

Explanation
The compound HI is named Hydrogen Iodide. This is because it consists of one hydrogen atom bonded to one iodine atom. In chemical nomenclature, the name of a compound is determined by the elements it contains and the ratio in which they are combined. In this case, the compound contains hydrogen and iodine, so it is named Hydrogen Iodide.

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15.

What is the name of the compound NiO?

Correct Answer
Nickle (II) oxide

Explanation
The correct name for the compound NiO is Nickle (II) oxide. This name follows the naming conventions for binary compounds, where the name of the metal (nickel) is followed by the oxidation state of the metal in parentheses (II) and then the name of the non-metal (oxide).

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16.

What is the name of the compound NaBr?

Correct Answer
Sodium Bromide

Explanation
The correct answer is Sodium Bromide. NaBr is the chemical formula for Sodium Bromide, a compound made up of sodium (Na) and bromine (Br) atoms. Sodium bromide is a white crystalline solid that is commonly used in various industries, including pharmaceuticals, photography, and oil drilling.

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17.

What is the name of the compound KCl?

Correct Answer
Potassium Chloride

Explanation
The name of the compound KCl is Potassium Chloride. This is because K represents the element potassium, and Cl represents the element chlorine. When these two elements combine, they form a compound called potassium chloride.

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18.

What is the formula for Mercury Oxide?

Correct Answer
HgO

Explanation
Mercury Oxide is represented by the chemical formula HgO. In this compound, one atom of mercury (Hg) is combined with one atom of oxygen (O). The symbol "Hg" represents the element mercury, while "O" represents oxygen. The subscript "1" is not shown in the formula, as it is understood that there is only one atom of each element in the compound. Therefore, the correct formula for Mercury Oxide is HgO.

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19.

What is the formula for lithium hydroxide?

Correct Answer
LiOH

Explanation
The formula for lithium hydroxide is LiOH. The symbol Li represents lithium, and the symbol OH represents the hydroxide ion. The hydroxide ion consists of one oxygen atom and one hydrogen atom, so the correct formula for lithium hydroxide is LiOH.

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Sep 14, 2019

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Ionic Bonding Exam: Quiz!

The atomic number of magnesium is 12. When magnesium reacts to form an ionic compound, the electronic configuration of the magnesium ion formed is

A crystal of sodium chloride is held together by:

How does a magnesium atom form a bond with an oxygen atom?

Which pair of elements will combine to form an ionic compound?

Element X has an electronic structure 2, 8, 8, 1. Element Y has an electronic structure of 2, 8, 6. What is the chemical formula of the compound formed between X and Y?

What is the formula for Magnesium Oxide?

What is the formula for Aluminum Nitride?

What is the formula for Lithium Iodide?

What is the formula for Sodium Fluoride?

What is the formula for Beryllium Oxide?

What is the name of the compound AlCl3?

What is the name of the compound Mg3N2?

What is the name of the compound CaO?

What is the name of the compound HI?

What is the name of the compound NiO?

What is the name of the compound NaBr?

What is the name of the compound KCl?

What is the formula for Mercury Oxide?

What is the formula for lithium hydroxide?

What is the name of the compound AlCl₃?

What is the name of the compound Mg₃N₂?