Domanda del libro di testo
Determine the number of valence electrons in an atom of each element. b. Sr
Ch.9 - Periodic Properties of the Elements
Tro6th EditionChemistry: A Molecular ApproachISBN: 9780137832217
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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 50c
Name an element in the third period (row) of the periodic table with the following: c. four 3p electrons
Guida verificata passo dopo passo1
Step 1: Understand that the third period of the periodic table refers to the third row. This period includes the elements from sodium (Na) to argon (Ar).
Step 2: Recall that the 3p subshell is part of the third energy level (n=3) in an atom. The 3p subshell can hold up to six electrons.
Step 3: Identify that the elements in the third period start filling the 3p subshell after the 3s subshell is filled. The 3s subshell is filled at magnesium (Mg), so the 3p subshell starts filling at aluminum (Al).
Step 4: Count the number of 3p electrons for each element starting from aluminum (Al). Aluminum (Al) has one 3p electron, silicon (Si) has two, phosphorus (P) has three, and sulfur (S) has four.
Step 5: Conclude that the element in the third period of the periodic table with four 3p electrons is sulfur (S).
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Periodic Table Structure
The periodic table is organized into rows (periods) and columns (groups) based on atomic number and electron configuration. Elements in the same period have the same number of electron shells. The third period includes elements from sodium (Na) to argon (Ar), which have three electron shells.
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Percorso guidato
02:40
Periodic Table Classifications
Electron Configuration
Electron configuration describes the distribution of electrons in an atom's orbitals. For elements in the third period, the electron configuration follows the order of filling the 3s and 3p orbitals. The presence of four 3p electrons indicates that the element has a configuration that includes the 3p subshell being partially filled.
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Percorso guidato
01:33Electron Configuration Example
Valence Electrons
Valence electrons are the outermost electrons of an atom and are crucial for determining chemical properties and reactivity. In the context of the third period, an element with four 3p electrons would have a total of four valence electrons, influencing its bonding behavior and placement in the periodic table.
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Percorso guidato
02:12Transition Metals Valence Electrons
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