Concept explainers
Give the formula of a negative ion that would have the same number of electrons as each of the following positive ions.
a. Na+
b. Ca2+
c. Al3+
d. Rb+
(a)
Interpretation: The formula of negative ions that have the same number of electrons as each of the given positive ions is to be written.
Concept introduction: The ionic compound can be separated into ions. Ions are of two types. Positively charged ions are called cation and negatively charged ions are called anions.
To determine: The formula of negative ions that have the same number of electrons as in
Answer to Problem 53E
Explanation of Solution
The electronic configuration of
It contains 10 electrons.
The atomic number of oxygen
It gains two electrons to get 10 electrons and form
The atomic number of fluorine
It gains an electron to get 10 electrons and form
The atomic number of nitrogen
It gains three electrons to get 10 electrons and form
(b)
Interpretation: The formula of negative ions that have the same number of electrons as each of the given positive ions is to be written.
Concept introduction: The ionic compound can be separated into ions. Ions are of two types. Positively charged ions are called cation and negatively charged ions are called anions.
To determine: The formula of negative ions that have the same number of electrons as in
Answer to Problem 53E
Explanation of Solution
The electronic configuration of
It contains 18 electrons.
The atomic number of chlorine
It gains an electron to get 18 electrons and form
The atomic number of sulfur
It gains two electrons to get 18 electrons and form
The atomic number of phosphorous
It gains three electrons to get 18 electrons and form
(c)
Interpretation: The formula of negative ions that have the same number of electrons as each of the given positive ions is to be written.
Concept introduction: The ionic compound can be separated into ions. Ions are of two types. Positively charged ions are called cation and negatively charged ions are called anions.
To determine: The formula of negative ions that have the same number of electrons as in
Answer to Problem 53E
Explanation of Solution
The electronic configuration of
It contains 10 electrons.
The atomic number of fluorine
It gains an electron to get 10 electrons and form
The atomic number of oxygen
It gains two electrons to get 10 electrons and form
The atomic number of nitrogen
It gains three electrons to get 10 electrons and form
(d)
Interpretation: The formula of negative ions that have the same number of electrons as each of the given positive ions is to be written.
Concept introduction: The ionic compound can be separated into ions. Ions are of two types. Positively charged ions are called cation and negatively charged ions are called anions.
To determine: The formula of negative ions that have the same number of electrons as in
Answer to Problem 53E
Explanation of Solution
The electronic configuration of
It contains 36 electrons.
The atomic number of bromine
It gains an electron to get 36 electrons and form
The atomic number of selenium
It gains two electrons to get 36 electrons and form
The atomic number of arsenic
It gains three electrons to get 36 electrons and form
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Chapter 8 Solutions
Chemistry
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