Textbook Question
Consider the following Lewis symbols for elements X and Y:
d. What would be the formula of a compound of X and Y?
Ch.6 Ionic and Molecular Compounds
Timberlake14th EditionChemistry: An Introduction to General, Organic, and Biological ChemistryISBN: 9781292472249
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Table of contents
- Ch.1 Chemistry in Our Lives19
- Ch.2 Chemistry and Measurements80
- Ch.3 Matter and Energy53
- Ch.4 Atoms and Elements58
- Ch.5 Nuclear Chemistry42
- Ch.6 Ionic and Molecular Compounds57
- Ch.7 Chemical Quantities and Reactions38
- Ch.8 Gases30
- Ch.9 Solutions50
- Ch.10 Acids and Bases and Equilibrium64
- Ch.11 Introduction to Organic Chemistry: Hydrocarbons77
- Ch.12 Alcohols, Thiols, Ethers, Aldehydes, and Ketones82
- Ch.13 Carbohydrates54
- Ch.14 Carboxylic Acids, Esters, Amines, and Amides91
- Ch.15 Lipids61
- Ch.16 Amino Acids, Proteins, and Enzymes84
- Ch.17 Nucleic Acids and Protein Synthesis86
- Ch.18 Metabolic Pathways and ATP Production73
Timberlake14th EditionChemistry: An Introduction to General, Organic, and Biological ChemistryISBN: 9781292472249Not the one you use?Change textbook
Chapter 6, Problem 97e
Consider the following Lewis symbols for elements X and Y:
e. What would be the formula of a compound of X and sulfur?
Verified step by step guidance1
Step 1: Analyze the Lewis symbols provided in the image. The element X has six valence electrons, as indicated by the six dots around it. This suggests that X is likely in Group 16 of the periodic table, similar to oxygen or sulfur. Element Y has one valence electron, as indicated by the single dot, suggesting it is in Group 1, like hydrogen or alkali metals.
Step 2: Recall that sulfur (S) is also in Group 16 and has six valence electrons. To form a stable compound, sulfur typically needs two additional electrons to complete its octet.
Step 3: Consider the bonding possibilities between X and sulfur. Since both X and sulfur have six valence electrons, they can share electrons to form covalent bonds. Each atom will share two electrons to complete their octets.
Step 4: Determine the formula of the compound. If X and sulfur each share two electrons, the resulting compound will have a 1:1 ratio of X to sulfur atoms. This is because both atoms achieve a stable octet by sharing electrons equally.
Step 5: Write the chemical formula based on the bonding ratio. The formula of the compound formed between X and sulfur will be XS, indicating one atom of X and one atom of sulfur in the compound.
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Key Concepts
Here are the essential concepts you must grasp in order to answer the question correctly.
Lewis Symbols
Lewis symbols represent the valence electrons of an atom, depicted as dots around the element's symbol. They are crucial for understanding how atoms bond with each other, particularly in ionic and covalent compounds. In the context of the question, the Lewis symbols for elements X and Y help determine how these elements interact with sulfur to form a compound.
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Lewis Dot Symbols (Simplified) Concept 2
Ionic Compounds
Ionic compounds are formed when atoms transfer electrons, resulting in the formation of positively and negatively charged ions. The electrostatic attraction between these oppositely charged ions leads to the creation of a stable compound. Understanding the nature of the ions formed by elements X and sulfur is essential for predicting the formula of the resulting ionic compound.
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Chemical Formula
A chemical formula represents the types and numbers of atoms in a compound. It is derived from the charges of the ions involved in the compound's formation. In this case, determining the correct ratio of elements X and sulfur based on their respective charges will allow for the accurate writing of the compound's formula.
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Related Practice
Textbook Question
Match each of the Lewis structures (a to c) with the correct diagram (1 to 3) of its shape, and name the shape; indicate if each molecule is polar or nonpolar. Assume X and Y are nonmetals and all bonds are polar covalent.
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c.
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Textbook Question
State the number of valence electrons, bonding pairs, and lone pairs in each of the following Lewis structures:
c.
1
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Textbook Question
Consider the following Lewis symbols for elements X and Y:
b. Will a compound of X and Y be ionic or molecular?
1
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Textbook Question
Consider the following Lewis symbols for elements X and Y:
c. What ions would be formed by X and Y?
1
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Textbook Question
Using each of the following electron arrangements, give the formulas for the cation and anion that form, the formula for the compound they form, and its name.