Domanda del libro di testo
Fill in the blank. Oxygen ionizes to become ― 2 instead of ― 1 because O2- is more ___________ .
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Ch. 2 - General Chemistry Translated: Finding the Electrons
Mullins1st EditionOrganic Chemistry: A Learner Centered ApproachISBN: 9780137566471
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TOC.tableOfContents
- Ch. 2 - General Chemistry Translated: Finding the Electrons114
- Ch. 3 - Alkanes and Cycloalkanes: Properties and Conformational Analysis109
- Ch. 4 - Acids and Bases/Electron Flow144
- Ch. 5 - Chemical Reaction Analysis: Thermodynamics and Kinetics118
- Ch. 6 - Stereoisomerism: Arrangement of Atoms in Space112
- Ch. 7 - Principles of Green (Organic) Chemistry3
- Ch. 8 - Alkenes 1: Properties and Electrophilic Additions158
- Ch. 9 - Alkenes 2: Oxidation and Reduction150
- Ch. 10 - Alkynes: Electrophilic Addition and Redox Reactions101
- Ch. 11 - Properties and Synthesis of Alkyl Halides: Radical Reactions108
- Ch. 12 - Substitution and Elimination: Reactions of Haloalkanes172
- Ch. 13 - Alcohols, Ethers and Related Compounds: Substitution and Elimination239
- Ch. 14 - Structural Identification 1: Infrared Spectroscopy and Mass Spectrometry54
- Ch. 15 - Structural Identification 2: Nuclear Magnetic Resonance Spectroscopy93
- Ch. 16 - Metals in Organic Chemistry48
- Ch. 17 - Carbonyl Addition Reactions: Aldehydes and Ketones45
- Ch. 18 - Nucleophilic Acyl Substitution 1: Carboxylic Acids18
- Ch. 19 - Nucleophilic Acyl Substitution 2: Carboxylic Acid Derivatives39
- Ch. 20 - Enolates: Carbonyl Addition and Substitution13
- Ch. 21 - Conjugated Systems 1: Stability and Addition Reactions56
- Ch. 22 - Conjugated Systems 2: Pericyclic Reactions54
- Ch. 23 - Benzene 1: Aromatic Stability and Substitution Reactions64
- Ch. 24 - Benzene 2: Reactions Influenced by the Aromatic Ring62
- Ch. 25 - Amines: Structure, Reactions, and Synthesis27
- Ch. 26 - Amino Acids, Proteins, and Peptide Synthesis9
- Ch. 27 - Carbohydrates, Nucleic Acids, and Lipids54
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Mullins 1st EditionCh. 2 - General Chemistry Translated: Finding the ElectronsProblema 20b
Mullins 1st EditionCh. 2 - General Chemistry Translated: Finding the ElectronsProblema 20bCapitolo 1, Problema 20b
(i) Using the periodic trend, choose the more electronegative atom in each pair. For one pair, you'll need to look at the actual Pauling values. (ii) For which one? (iii) Why?
(b) N vs. O
Guida verificata passo dopo passo1
Step 1: Recall the periodic trend for electronegativity. Electronegativity generally increases across a period (left to right) and decreases down a group in the periodic table.
Step 2: Identify the position of nitrogen (N) and oxygen (O) in the periodic table. Both elements are in the same period (Period 2), but oxygen is to the right of nitrogen.
Step 3: Based on the periodic trend, oxygen is expected to be more electronegative than nitrogen because it is further to the right in the same period.
Step 4: To confirm this, look at the actual Pauling electronegativity values. Nitrogen has a value of approximately 3.0, while oxygen has a value of approximately 3.5. This confirms that oxygen is more electronegative.
Step 5: Explain why oxygen is more electronegative. Oxygen has a higher nuclear charge (more protons in the nucleus) compared to nitrogen, which results in a stronger attraction for electrons in a covalent bond.
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Electronegativity
Electronegativity is a measure of an atom's ability to attract and hold onto electrons in a chemical bond. It is a key concept in understanding how atoms interact in molecules. The Pauling scale is commonly used to quantify electronegativity values, with higher values indicating a stronger tendency to attract electrons.
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Electronegativity
Periodic Trends
Periodic trends refer to the predictable patterns observed in the properties of elements as you move across or down the periodic table. Electronegativity generally increases across a period from left to right and decreases down a group. This trend is crucial for comparing the electronegativity of elements like nitrogen (N) and oxygen (O) in the given question.
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03:43The radical stability trend.
Pauling Scale
The Pauling scale is a numerical scale for measuring electronegativity, developed by Linus Pauling. It assigns values to elements based on their ability to attract electrons in a bond, with fluorine being the most electronegative at 4.0. For the pair N vs. O, the actual Pauling values (3.0 for N and 3.5 for O) indicate that oxygen is more electronegative, which is essential for answering the question.
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02:15The pH scale vs. the pKa scale.
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