Domanda del libro di testo
Predict the chemical formula of the ionic compound formed between the following pairs of elements: (d) Li and O.
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Ch.8 - Basic Concepts of Chemical Bonding
Brown14th EditionChemistry: The Central ScienceISBN: 9780134414232
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TOC.tableOfContents
- Ch.1 - Introduction: Matter, Energy, and Measurement177
- Ch.2 - Atoms, Molecules, and Ions231
- Ch.3 - Chemical Reactions and Reaction Stoichiometry216
- Ch.4 - Reactions in Aqueous Solution189
- Ch.5 - Thermochemistry175
- Ch.6 - Electronic Structure of Atoms168
- Ch.7 - Periodic Properties of the Elements150
- Ch.8 - Basic Concepts of Chemical Bonding177
- Ch.9 - Molecular Geometry and Bonding Theories200
- Ch.10 - Gases179
- Ch.11 - Liquids and Intermolecular Forces113
- Ch.12 - Solids and Modern Materials154
- Ch.13 - Properties of Solutions157
- Ch.14 - Chemical Kinetics199
- Ch.15 - Chemical Equilibrium128
- Ch.16 - Acid-Base Equilibria164
- Ch.17 - Additional Aspects of Aqueous Equilibria163
- Ch.18 - Chemistry of the Environment105
- Ch.19 - Chemical Thermodynamics164
- Ch.20 - Electrochemistry171
- Ch.21 - Nuclear Chemistry122
- Ch.22 - Chemistry of the Nonmetals82
- Ch.23 - Transition Metals and Coordination Chemistry79
- Ch.24 - The Chemistry of Life: Organic and Biological Chemistry16
Brown14th EditionChemistry: The Central ScienceISBN: 9780134414232Non è quello che usi tu?Cambia libro di testo
Capitolo 8, Problema 18a,b,c
Which ionic compound is expected to form from combining the following pairs of elements? (a) calcium and nitrogen (b) cesium and bromine (c) strontium and sulfur
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Identify the charges of the ions formed by each element: Strontium (Sr) is in Group 2 of the periodic table and typically forms a +2 cation (Sr^{2+}). Sulfur (S) is in Group 16 and typically forms a -2 anion (S^{2-}).
Determine the ratio of ions needed to balance the charges: Since Sr^{2+} and S^{2-} have equal but opposite charges, they will combine in a 1:1 ratio to balance the charges.
Write the formula of the ionic compound: Combine one Sr^{2+} ion with one S^{2-} ion to form the neutral compound SrS.
Verify the neutrality of the compound: Check that the total positive charge (+2 from Sr^{2+}) and the total negative charge (-2 from S^{2-}) sum to zero, confirming the compound is neutral.
Name the ionic compound: The name of the compound is strontium sulfide, following the convention of naming the metal (cation) first and the non-metal (anion) with an -ide suffix.
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Ionic Bonding
Ionic bonding occurs when atoms transfer electrons to achieve full outer electron shells, resulting in the formation of charged ions. Typically, this happens between metals, which lose electrons and become positively charged cations, and nonmetals, which gain electrons to become negatively charged anions. The electrostatic attraction between these oppositely charged ions forms a stable ionic compound.
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Percorso guidato
01:49
Chemical Bonds
Valence Electrons
Valence electrons are the outermost electrons of an atom and play a crucial role in chemical bonding. The number of valence electrons determines how an element interacts with others, including its ability to lose, gain, or share electrons. For strontium (which has two valence electrons) and sulfur (which has six), understanding their valence electrons is essential for predicting the type of ionic compound they will form.
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02:12Transition Metals Valence Electrons
Formation of Ionic Compounds
The formation of ionic compounds involves the combination of cations and anions in a ratio that results in a neutral overall charge. In the case of strontium and sulfur, strontium forms a +2 cation (Sr²⁺) and sulfur forms a -2 anion (S²⁻). Therefore, one strontium ion will combine with one sulfur ion to create the ionic compound strontium sulfide (SrS), demonstrating the principle of charge balance in ionic compounds.
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02:11Ionic Compounds Naming
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