Ch.22 - The Main Group Elements
McMurry8th EditionChemistryISBN: 9781292336145
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TOC.tableOfContents
- Ch.1 - Chemical Tools: Experimentation & Measurement170
- Ch.2 - Atoms, Molecules & Ions160
- Ch.3 - Mass Relationships in Chemical Reactions169
- Ch.4 - Reactions in Aqueous Solution199
- Ch.5 - Periodicity & Electronic Structure of Atoms102
- Ch.6 - Ionic Compounds: Periodic Trends and Bonding Theory92
- Ch.7 - Covalent Bonding and Electron-Dot Structures61
- Ch.8 - Covalent Compounds: Bonding Theories and Molecular Structure59
- Ch.9 - Thermochemistry: Chemical Energy122
- Ch.10 - Gases: Their Properties & Behavior155
- Ch.11 - Liquids & Phase Changes54
- Ch.12 - Solids and Solid-State Materials73
- Ch.13 - Solutions & Their Properties120
- Ch.14 - Chemical Kinetics98
- Ch.15 - Chemical Equilibrium125
- Ch.16 - Aqueous Equilibria: Acids & Bases110
- Ch.17 - Applications of Aqueous Equilibria147
- Ch.18 - Thermodynamics: Entropy, Free Energy & Equilibrium86
- Ch.19 - Electrochemistry154
- Ch.20 - Nuclear Chemistry96
- Ch.21 - Transition Elements and Coordination Chemistry156
- Ch.22 - The Main Group Elements187
- Ch.23 - Organic and Biological Chemistry51
Capitolo 22, Problema 39
Which element in each of the following pairs has more nonmetallic character? (b) Br or As
Guida verificata passo dopo passo1
Step 1: Understand the concept of nonmetallic character. Nonmetallic character refers to the tendency of an element to accept electrons during chemical reactions. Nonmetals typically have higher electronegativities and ionization energies compared to metals.
Step 2: Locate the elements on the periodic table. Bromine (Br) is in Group 17 (halogens) and Arsenic (As) is in Group 15 (pnictogens).
Step 3: Compare the positions of Br and As on the periodic table. Nonmetallic character increases across a period from left to right and decreases down a group.
Step 4: Analyze the trends. Since Br is to the right of As in the same period, Br has a higher nonmetallic character than As.
Step 5: Conclude that Bromine (Br) has more nonmetallic character than Arsenic (As) based on its position in the periodic table and the general trend of increasing nonmetallic character across a period.
Concetti chiave
Ecco i concetti essenziali che devi comprendere per rispondere correttamente alla domanda.
Nonmetallic Character
Nonmetallic character refers to the tendency of an element to exhibit properties typical of nonmetals, such as high electronegativity, poor conductivity, and the ability to gain electrons. Nonmetals are generally found on the right side of the periodic table and are characterized by their ability to form covalent bonds and anions.
Video consigliato:
Percorso guidato
00:56
Metallic Character Example
Periodic Trends
Periodic trends are predictable patterns observed in the properties of elements across the periodic table. Nonmetallic character increases as you move from left to right across a period and decreases as you move down a group. Understanding these trends helps in comparing elements and predicting their behavior.
Video consigliato:
Percorso guidato
00:38Periodic Trends
Bromine vs. Arsenic
In the pair of elements Br (bromine) and As (arsenic), bromine is a nonmetal while arsenic is a metalloid. Bromine, being further to the right in the periodic table, has a higher nonmetallic character compared to arsenic, which influences its chemical reactivity and bonding behavior.
Video consigliato:
Percorso guidato
03:05Ksp vs Q in Precipitation
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