(a)
Interpretation: To find the number of valence electrons in the given elements.
Concept Introduction: The total number of electrons present in the outermost shell of an atom is called the valence electrons. The chemical properties and reactivity of an element depend greatly on the number and nature of these valence electrons.
(a)
Answer to Problem 124A
Lithium atom has only one valence electron.
Explanation of Solution
The electronic configuration of lithium with
(b)
Interpretation: To find the number of valence electrons in the given element.
Concept Introduction: The total number of electrons present in the outermost shell of an atom is called the valence electrons. The chemical properties and reactivity of an element depend greatly on the number and nature of these valence electrons.
(b)
Answer to Problem 124A
Sulfur belongs to the oxygen family and the number of valence electrons on a sulfur atom is six.
Explanation of Solution
The atomic number of sulfur is 16 and its electronic configuration is:
(c)
Interpretation: To find the number of valence electrons in the given elements.
Concept Introduction: The total number of electrons present in the outermost shell of an atom is called the valence electrons. The chemical properties and reactivity of an element depend greatly on the number and nature of these valence electrons.
(c)
Answer to Problem 124A
The noble gas neon has eight electrons in its valence shell. It has its octet completed.
Explanation of Solution
Neon is a noble gas with atomic number 10 with a filled octet. Its electronic configuration is:
(d)
Interpretation: To find the number of valence electrons in the given elements.
Concept Introduction: The total number of electrons present in the outermost shell of an atom is called the valence electrons. The chemical properties and reactivity of an element depend greatly on the number and nature of these valence electrons.
(d)
Answer to Problem 124A
Calcium is an alkaline earth metal with atomic number 20. It contains two valence electrons.
Explanation of Solution
The electronic configuration of calcium is:
(e)
Interpretation: To find the number of valence electrons in the given elements.
Concept Introduction: The total number of electrons present in the outermost shell of an atom is called the valence electrons. The chemical properties and reactivity of an element depend greatly on the number and nature of these valence electrons.
(e)
Answer to Problem 124A
Bromine belongs to the halogen family and it contains 7 valence electrons.
Explanation of Solution
The atomic number of bromine is 35 and its electronic configuration is:
(f)
Interpretation: To find the number of valence electrons in the given elements.
Concept Introduction: The total number of electrons present in the outermost shell of an atom is called the valence electrons. The chemical properties and reactivity of an element depend greatly on the number and nature of these valence electrons.
(f)
Answer to Problem 124A
The phosphorus atom has five valence electrons in its outermost shell.
Explanation of Solution
The electronic configuration of phosphorous with atomic number 15 is:
Chapter 9 Solutions
Chemistry 2012 Student Edition (hard Cover) Grade 11
- ChemistryChemistryISBN:9781305957404Author:Steven S. Zumdahl, Susan A. Zumdahl, Donald J. DeCostePublisher:Cengage LearningChemistryChemistryISBN:9781259911156Author:Raymond Chang Dr., Jason Overby ProfessorPublisher:McGraw-Hill EducationPrinciples of Instrumental AnalysisChemistryISBN:9781305577213Author:Douglas A. Skoog, F. James Holler, Stanley R. CrouchPublisher:Cengage Learning
- Organic ChemistryChemistryISBN:9780078021558Author:Janice Gorzynski Smith Dr.Publisher:McGraw-Hill EducationChemistry: Principles and ReactionsChemistryISBN:9781305079373Author:William L. Masterton, Cecile N. HurleyPublisher:Cengage LearningElementary Principles of Chemical Processes, Bind...ChemistryISBN:9781118431221Author:Richard M. Felder, Ronald W. Rousseau, Lisa G. BullardPublisher:WILEY