Name the compounds in parts a–d and write the formulas for the compounds in parts e–h.
- a. NaBr
- b. Rb2O
- c. CaS
- d. AlI3
- e. strontium fluoride
- f. aluminum selenide
- g. potassium nitride
- h. magnesium phosphide
(a)

Interpretation:
The compounds given in parts “a-d” are to be named and the formulas for the compounds in parts “e-h” are to be stated.
Concept introduction:
The chemical bonds are the forces which hold the atoms together in compounds.
- The simplest representation of the molecule is known as a chemical formula.
- The chemical formula of an ionic compound comprises cations and the anions.
- Every element always gets stabilization by getting electronic configuration of the nearest noble gas. Therefore in getting stabilization elements are ionized.
- In the representation of the chemical formula of ionic compound the cation always comes first in the naming while the anion comes last with the ending the term “-ide”.
- In an ionic compound generally cations are metals while anions are non metals.
- The charges present on the cations and on the anions always follow the concept of valency.
- According to the concept of valency the net charge present on an ionic compound must be zero.
Answer to Problem 71E
Answer
The Name of the compound is Sodium bromide.
Explanation of Solution
To determine: The name of the compound
Name of the compound is Sodium bromide.
The given formula consists of one Sodium ion and one Bromine ion. In an ionic compound representation cations are always written first and the anions make the root of the element by adding the term “-ide” at the end of the compound.
The charges present on cation and anion must be neutralized with the charges present on each other.
The given
(b)

Interpretation:
The compounds given in parts “a-d” are to be named and the formulas for the compounds in parts “e-h” are to be stated.
Concept introduction:
The chemical bonds are the forces which hold the atoms together in compounds.
- The simplest representation of the molecule is known as a chemical formula.
- The chemical formula of an ionic compound comprises cations and the anions.
- Every element always gets stabilization by getting electronic configuration of the nearest noble gas. Therefore in getting stabilization elements are ionized.
- In the representation of the chemical formula of ionic compound the cation always comes first in the naming while the anion comes last with the ending the term “-ide”.
- In an ionic compound generally cations are metals while anions are non metals.
- The charges present on the cations and on the anions always follow the concept of valency.
- According to the concept of valency the net charge present on an ionic compound must be zero.
Answer to Problem 71E
Answer
Name of the compound is Rubidium oxide.
Explanation of Solution
Explanation
To determine: The name of the compound
Name of the compound is Rubidium oxide.
The given compound consists of two Rubidium cation
Hence, the name of the compound is Rubidium oxide
(c)

Interpretation:
The compounds given in parts “a-d” are to be named and the formulas for the compounds in parts “e-h” are to be stated.
Concept introduction:
The chemical bonds are the forces which hold the atoms together in compounds.
- The simplest representation of the molecule is known as a chemical formula.
- The chemical formula of an ionic compound comprises cations and the anions.
- Every element always gets stabilization by getting electronic configuration of the nearest noble gas. Therefore in getting stabilization elements are ionized.
- In the representation of the chemical formula of ionic compound the cation always comes first in the naming while the anion comes last with the ending the term “-ide”.
- In an ionic compound generally cations are metals while anions are non metals.
- The charges present on the cations and on the anions always follow the concept of valency.
- According to the concept of valency the net charge present on an ionic compound must be zero.
Answer to Problem 71E
Answer
Name of the compound is Calcium sulfide.
Explanation of Solution
Explanation
To determine: The name of the compound
Name of the compound is Calcium sulfide.
The given compound consists of one Calcium cation
Hence, the name of the compound is Calcium Sulfide.
(d)

Interpretation:
The compounds given in parts “a-d” are to be named and the formulas for the compounds in parts “e-h” are to be stated.
Concept introduction:
The chemical bonds are the forces which hold the atoms together in compounds.
- The simplest representation of the molecule is known as a chemical formula.
- The chemical formula of an ionic compound comprises cations and the anions.
- Every element always gets stabilization by getting electronic configuration of the nearest noble gas. Therefore in getting stabilization elements are ionized.
- In the representation of the chemical formula of ionic compound the cation always comes first in the naming while the anion comes last with the ending the term “-ide”.
- In an ionic compound generally cations are metals while anions are non metals.
- The charges present on the cations and on the anions always follow the concept of valency.
- According to the concept of valency the net charge present on an ionic compound must be zero.
Answer to Problem 71E
Answer
Name of the compound is Aluminum iodide.
Explanation of Solution
Explanation
To determine: The name of the compound
Name of the compound is Aluminum iodide.
The given compound consists of one Aluminum cation
Hence, the name of the compound is Aluminum iodide.
(e)

Interpretation:
The compounds given in parts “a-d” are to be named and the formulas for the compounds in parts “e-h” are to be stated.
Concept introduction:
The chemical bonds are the forces which hold the atoms together in compounds.
- The simplest representation of the molecule is known as a chemical formula.
- The chemical formula of an ionic compound comprises cations and the anions.
- Every element always gets stabilization by getting electronic configuration of the nearest noble gas. Therefore in getting stabilization elements are ionized.
- In the representation of the chemical formula of ionic compound the cation always comes first in the naming while the anion comes last with the ending the term “-ide”.
- In an ionic compound generally cations are metals while anions are non metals.
- The charges present on the cations and on the anions always follow the concept of valency.
- According to the concept of valency the net charge present on an ionic compound must be zero.
Answer to Problem 71E
Answer
Formula of the compound is
Explanation of Solution
Explanation
To determine: The formula of the compound Strontium fluoride.
Formula of the compound is “
The given compound consists of Strontium cation and fluoride anion. As the name of the compound is starting with Strontium so the cation is
Strontium is present in the second group in the periodic table so by losing two electrons it gets stabilized. Therefore, it becomes
Therefore, it becomes
(f)

Interpretation:
The compounds given in parts “a-d” are to be named and the formulas for the compounds in parts “e-h” are to be stated.
Concept introduction:
The chemical bonds are the forces which hold the atoms together in compounds.
- The simplest representation of the molecule is known as a chemical formula.
- The chemical formula of an ionic compound comprises cations and the anions.
- Every element always gets stabilization by getting electronic configuration of the nearest noble gas. Therefore in getting stabilization elements are ionized.
- In the representation of the chemical formula of ionic compound the cation always comes first in the naming while the anion comes last with the ending the term “-ide”.
- In an ionic compound generally cations are metals while anions are non metals.
- The charges present on the cations and on the anions always follow the concept of valency.
- According to the concept of valency the net charge present on an ionic compound must be zero.
Answer to Problem 71E
Answer
Formula of the compound is
Explanation of Solution
Explanation
To determine: The formula of the compound Aluminum selenide.
Formula of the compound is
The given compound consists of Aluminum cation and Selenium anion. As the name of the compound is starting with Aluminum so the cation is
(g)

Interpretation:
The compounds given in parts “a-d” are to be named and the formulas for the compounds in parts “e-h” are to be stated.
Concept introduction:
The chemical bonds are the forces which hold the atoms together in compounds.
- The simplest representation of the molecule is known as a chemical formula.
- The chemical formula of an ionic compound comprises cations and the anions.
- Every element always gets stabilization by getting electronic configuration of the nearest noble gas. Therefore in getting stabilization elements are ionized.
- In the representation of the chemical formula of ionic compound the cation always comes first in the naming while the anion comes last with the ending the term “-ide”.
- In an ionic compound generally cations are metals while anions are non metals.
- The charges present on the cations and on the anions always follow the concept of valency.
- According to the concept of valency the net charge present on an ionic compound must be zero.
Answer to Problem 71E
Answer
Formula of the compound is
Explanation of Solution
Explanation
To determine: The formula of the compound Potassium nitride.
Formula of the compound is “
The given compound consists of Potassium cation and Nitride anion. As the name of the compound is starting with Potassium so the cation is
(h)

Interpretation:
The compounds given in parts “a-d” are to be named and the formulas for the compounds in parts “e-h” are to be stated.
Concept introduction:
The chemical bonds are the forces which hold the atoms together in compounds.
- The simplest representation of the molecule is known as a chemical formula.
- The chemical formula of an ionic compound comprises cations and the anions.
- Every element always gets stabilization by getting electronic configuration of the nearest noble gas. Therefore in getting stabilization elements are ionized.
- In the representation of the chemical formula of ionic compound the cation always comes first in the naming while the anion comes last with the ending the term “-ide”.
- In an ionic compound generally cations are metals while anions are non metals.
- The charges present on the cations and on the anions always follow the concept of valency.
- According to the concept of valency the net charge present on an ionic compound must be zero.
Answer to Problem 71E
Answer
Formula of the compound is
Explanation of Solution
Explanation
To determine: The formula of the compound Magnesium phosphide.
Formula of the compound is “
The given compound consists of Magnesium cation and phosphide anion. As the name of the compound is starting with Magnesium so the cation is
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