Textbook Question
Write the names for each of the following ions:
b. Sr2+
2
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Ch.6 Ionic and Molecular Compounds
Timberlake13th EditionChemistry: An Introduction to General, Organic, and Biological ChemistryISBN: 9780134421353
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Table of contents
- Ch.1 Chemistry in Our Lives11
- Ch.2 Chemistry and Measurements80
- Ch.3 Matter and Energy54
- Ch.4 Atoms and Elements51
- Ch.5 Nuclear Chemistry42
- Ch.6 Ionic and Molecular Compounds57
- Ch.7 Chemical Quantities and Reactions41
- Ch.8 Gases29
- Ch.9 Solutions51
- Ch.10 Acids and Bases and Equilibrium65
- Ch.11 Introduction to Organic Chemistry: Hydrocarbons78
- Ch.12 Alcohols, Thiols, Ethers, Aldehydes, and Ketones83
- Ch.13 Carbohydrates54
- Ch.14 Carboxylic Acids, Esters, Amines, and Amides90
- Ch.15 Lipids61
- Ch.16 Amino Acids, Proteins, and Enzymes84
- Ch.17 Nucleic Acids and Protein Synthesis83
- Ch.18 Metabolic Pathways and ATP Production67
Timberlake13th EditionChemistry: An Introduction to General, Organic, and Biological ChemistryISBN: 9780134421353Not the one you use?Change textbook
Chapter 6, Problem 10b
Write the symbol for the ion of each of the following:
b. barium
Verified step by step guidance1
Determine the group number of barium on the periodic table. Barium (Ba) is located in Group 2, which means it is an alkaline earth metal.
Recall that elements in Group 2 typically lose two electrons to achieve a stable electron configuration, resulting in a +2 charge.
Write the symbol for barium (Ba) and indicate the charge as a superscript. The ion formed by barium is Ba²⁺.
Verify the charge by considering the electron configuration. Barium has an atomic number of 56, so its neutral atom configuration is [Xe]6s². By losing two electrons, it achieves the stable configuration of [Xe].
Conclude that the symbol for the barium ion is Ba²⁺, representing a barium atom that has lost two electrons.
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Key Concepts
Here are the essential concepts you must grasp in order to answer the question correctly.
Ionic Charge
Ionic charge refers to the electrical charge that an atom or molecule carries when it gains or loses electrons. For example, when an atom loses electrons, it becomes positively charged (cation), while gaining electrons results in a negative charge (anion). Understanding ionic charge is essential for determining the symbol of an ion.
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Ionic Bonding Concept 1
Barium
Barium is a chemical element with the symbol 'Ba' and atomic number 56. It is an alkaline earth metal that typically forms a +2 charge when it becomes an ion, as it readily loses its two outermost electrons. Recognizing the properties of barium helps in identifying its ionic form.
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Chemical Symbol Notation
Chemical symbol notation is a standardized way of representing elements and their ions using one or two letters. The first letter is always capitalized, and if there is a second letter, it is lowercase. For barium, the ion symbol is written as 'Ba²⁺', indicating its +2 charge.
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