Concept explainers
(a)
Interpretation:
The number of valence electrons in helium is to be stated.
Concept introduction:
The periodic table represents elements in order of their increasing
Answer to Problem 60E
The number of valence electrons in helium is
Explanation of Solution
The helium belongs to the Group
The helium is the only noble gas that has only two electrons in its outermost shell. The rest of the noble gases have eight electrons in their valence shell.
Therefore, the number of valence electrons in helium is
The number of valence electrons in helium is
(b)
Interpretation:
The number of valence electrons in lead is to be stated.
Concept introduction:
The periodic table represents elements in order of their increasing atomic numbers. In the modern periodic table, the horizontal rows are known as periods and vertical columns are known as groups. There are seven periods and eighteenth groups in the modern periodic table.
Answer to Problem 60E
The number of valence electrons in lead is
Explanation of Solution
The lead belongs to the Group
The general electronic configuration for the outermost shell of the Group
The total number of electrons present in the outermost shell of an element of the Group
The number of valence electrons in elements of Group
Therefore, the number of valence electrons in lead is
The number of valence electrons in lead is
(c)
Interpretation:
The number of valence electrons in selenium is to be stated.
Concept introduction:
The periodic table represents elements in order of their increasing atomic numbers. In the modern periodic table, the horizontal rows are known as periods and vertical columns are known as groups. There are seven periods and eighteenth groups in the modern periodic table.
Answer to Problem 60E
The number of valence electrons in selenium is
Explanation of Solution
The Selenium belongs to the Group
The general electronic configuration for the outermost shell of the Group
The total number of electrons present in the outermost shell of an element of the Group
The number of valence electrons in elements of Group
Therefore, the number of valence electrons in selenium is
The number of valence electrons in Selenium is
(d)
Interpretation:
The number of valence electrons in neon is to be stated.
Concept introduction:
The periodic table represents elements in order of their increasing atomic numbers. In the modern periodic table, the horizontal rows are known as periods and vertical columns are known as groups. There are seven periods and eighteenth groups in the modern periodic table.
Answer to Problem 60E
The number of valence electrons in neon is
Explanation of Solution
The neon belongs to the Group
The general electronic configuration for the outermost shell of the Group
The total number of electrons present in the outermost shell of an element of the Group
The number of valence electrons in elements of Group
Therefore, the number of valence electrons in neon is
The number of valence electrons in neon is
(e)
Interpretation:
The number of valence electrons in cesium is to be stated.
Concept introduction:
The periodic table represents elements in order of their increasing atomic numbers. In the modern periodic table, the horizontal rows are known as periods and vertical columns are known as groups. There are seven periods and eighteenth groups in the modern periodic table.
Answer to Problem 60E
The number of valence electrons in cesium is
Explanation of Solution
The cesium belongs to the Group
The general electronic configuration for the outermost shell of the Group
Only one electron is present in the
The number of valence electrons in elements of Group
Therefore, the number of valence electrons in cesium is
The number of valence electrons in cesium is
(f)
Interpretation:
The number of valence electrons in gallium is to be stated.
Concept introduction:
The periodic table represents elements in order of their increasing atomic numbers. In the modern periodic table, the horizontal rows are known as periods and vertical columns are known as groups. There are seven periods and eighteenth groups in the modern periodic table.
Answer to Problem 60E
The number of valence electrons in gallium is
Explanation of Solution
The gallium belongs to the Group
The general electronic configuration for the outermost shell of the Group
The total number of electrons present in the outermost shell of an element of the Group
Therefore, the number of valence electrons in gallium is
The number of valence electrons in gallium is
(g)
Interpretation:
The number of valence electrons in antimony is to be stated.
Concept introduction:
The periodic table represents elements in order of their increasing atomic numbers. In the modern periodic table, the horizontal rows are known as periods and vertical columns are known as groups. There are seven periods and eighteenth groups in the modern periodic table.
Answer to Problem 60E
The number of valence electrons in antimony is
Explanation of Solution
The antimony belongs to the Group
The general electronic configuration for the outermost shell of the Group
The total number of electrons present in the outermost shell of an element of the Group
The number of valence electrons in elements of Group
Therefore, the number of valence electrons in antimony is
The number of valence electrons in antimony is
(h)
Interpretation:
The number of valence electrons in elements of bromine is to be stated.
Concept introduction:
The periodic table represents elements in order of their increasing atomic numbers. In the modern periodic table, the horizontal rows are known as periods and vertical columns are known as groups. There are seven periods and eighteenth groups in the modern periodic table.
Answer to Problem 60E
The number of valence electrons in elements of bromine is
Explanation of Solution
The bromine belongs to the Group
The general electronic configuration for the outermost shell of the Group
The total number of electrons present in the outermost shell of an element of the Group
The number of valence electrons in elements of Group
Therefore, the number of valence electrons in elements of bromine is
The number of valence electrons in elements of bromine is
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Chapter 5 Solutions
EBK INTRODUCTORY CHEMISTRY
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