Domanda del libro di testo
Choose the element with the more negative (more exothermic) electron affinity from each pair. c. P or S
Ch.9 - Periodic Properties of the Elements
Tro6th EditionChemistry: A Molecular ApproachISBN: 9780137832217
Non è quello che usi tu?Cambia libro di testoScegli un libro di testo diverso
TOC.tableOfContents
- Ch.1 - Matter, Measurement & Problem Solving118
- Ch.2 - Atoms & Elements106
- Ch.3 - Molecules and Compounds131
- Ch.4 - Chemical Reactions and Chemical Quantities56
- Ch.5 - Introduction to Solutions and Aqueous Solutions82
- Ch.6 - Gases114
- Ch.7 - Thermochemistry96
- Ch.8 - The Quantum-Mechanical Model of the Atom60
- Ch.9 - Periodic Properties of the Elements90
- Ch.10 - Chemical Bonding I: The Lewis Model89
- Ch.11 - Chemical Bonding II: Molecular Shapes, VSEPR & MO Theory85
- Ch.12 - Liquids, Solids & Intermolecular Forces51
- Ch.13 - Solids & Modern Materials47
- Ch.14 - Solutions90
- Ch.15 - Chemical Kinetics115
- Ch.16 - Chemical Equilibrium68
- Ch.17 - Acids and Bases136
- Ch.18 - Aqueous Ionic Equilibrium153
- Ch.19 - Free Energy & Thermodynamics93
- Ch.20 - Electrochemistry106
- Ch.21 - Radioactivity & Nuclear Chemistry74
- Ch.22 - Organic Chemistry140
Tro6th EditionChemistry: A Molecular ApproachISBN: 9780137832217Non è quello che usi tu?Cambia libro di testo
Capitolo 9, Problema 86
Choose the element with the more negative (more exothermic) electron affinity in each pair. a. Ca or Se b. Ge or S c. Al or O d. Se or I
Guida verificata passo dopo passo1
Understand the concept of electron affinity: Electron affinity is the energy change that occurs when an electron is added to a neutral atom in the gaseous state. A more negative electron affinity indicates a greater tendency to gain an electron, making it more exothermic.
Compare the elements in each pair based on their positions in the periodic table: Generally, electron affinity becomes more negative across a period from left to right and less negative down a group.
For pair a (Ca or Se): Calcium (Ca) is in Group 2, while Selenium (Se) is in Group 16. Elements in Group 16 typically have more negative electron affinities than those in Group 2.
For pair b (Ge or S): Germanium (Ge) is in Group 14, while Sulfur (S) is in Group 16. Elements in Group 16 generally have more negative electron affinities than those in Group 14.
For pair c (Al or O): Aluminum (Al) is in Group 13, while Oxygen (O) is in Group 16. Oxygen, being in Group 16, typically has a more negative electron affinity than Aluminum.
Risposta video verificata per un problema simile:
Questa soluzione video è stata consigliata dai nostri tutor come utile per risolvere questo problema.
Durata del video:
2mConcetti chiave
Ecco i concetti essenziali che devi comprendere per rispondere correttamente alla domanda.
Electron Affinity
Electron affinity is the energy change that occurs when an electron is added to a neutral atom in the gas phase. A more negative electron affinity indicates a greater release of energy, meaning the atom more readily accepts an electron. This property is crucial for understanding how elements interact with electrons and form negative ions.
Video consigliato:
Percorso guidato
01:34
Electron Affinity
Periodic Trends
Periodic trends refer to the predictable patterns observed in the properties of elements across the periodic table. For electron affinity, elements on the right side of the table (like halogens) generally have more negative values compared to those on the left (like alkaline earth metals). Understanding these trends helps in predicting the behavior of elements in terms of their electron affinity.
Video consigliato:
Percorso guidato
00:38Periodic Trends
Comparison of Elements
When comparing elements for their electron affinity, it is essential to consider their atomic structure, including the number of valence electrons and their effective nuclear charge. Elements with higher effective nuclear charge tend to have more negative electron affinities because they can attract additional electrons more effectively. This comparison is key to determining which element in each pair has a more exothermic electron affinity.
Video consigliato:
Percorso guidato
02:35Elemental Forms of Elements
Pratica correlata
Domanda del libro di testo
Choose the more metallic element from each pair. a. Rb or Sn b. P or Sb c. Te or Cl d. O or P
Domanda del libro di testo
Arrange these elements in order of increasing metallic character: Fr, Sb, In, S, Ba, Se.
704
views
Domanda del libro di testo
Choose the more metallic element from each pair. a. As or Sn b. Ca or Ga c. I or Bi d. Br or At
Domanda del libro di testo
Consider this set of ionization energies.
IE1 = l000 kJ/mol
IE2 = 2250 kJ/mol
IE3 = 3360 kJ/mol
IE4 = 4560 kJ/mol
IE5 = 7010 kJ/mol
IE6 = 8500 kJ/mol
IE = 27,I00 kJ/mol
To which third-period element do these ionization values belong?
Domanda del libro di testo
Choose the element with the more negative (more exothermic) electron affinity from each pair. b. C or F