Domanda del libro di testo
(a) State whether or not the bonding in each substance is likely to be covalent: (i) glucose, (ii) nitrogen, (iii) aluminum hydroxide, (iv) ammonia, (v) neon.
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Ch.8 - Basic Concepts of Chemical Bonding
Brown14th EditionChemistry: The Central ScienceISBN: 9780134414232
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TOC.tableOfContents
- Ch.1 - Introduction: Matter, Energy, and Measurement177
- Ch.2 - Atoms, Molecules, and Ions231
- Ch.3 - Chemical Reactions and Reaction Stoichiometry216
- Ch.4 - Reactions in Aqueous Solution189
- Ch.5 - Thermochemistry175
- Ch.6 - Electronic Structure of Atoms168
- Ch.7 - Periodic Properties of the Elements150
- Ch.8 - Basic Concepts of Chemical Bonding177
- Ch.9 - Molecular Geometry and Bonding Theories200
- Ch.10 - Gases179
- Ch.11 - Liquids and Intermolecular Forces113
- Ch.12 - Solids and Modern Materials154
- Ch.13 - Properties of Solutions157
- Ch.14 - Chemical Kinetics199
- Ch.15 - Chemical Equilibrium128
- Ch.16 - Acid-Base Equilibria164
- Ch.17 - Additional Aspects of Aqueous Equilibria163
- Ch.18 - Chemistry of the Environment105
- Ch.19 - Chemical Thermodynamics164
- Ch.20 - Electrochemistry171
- Ch.21 - Nuclear Chemistry122
- Ch.22 - Chemistry of the Nonmetals82
- Ch.23 - Transition Metals and Coordination Chemistry79
- Ch.24 - The Chemistry of Life: Organic and Biological Chemistry16
Brown14th EditionChemistry: The Central ScienceISBN: 9780134414232Non è quello che usi tu?Cambia libro di testo
Capitolo 8, Problema 33a,c,d
Using Lewis symbols and Lewis structures, make a sketch of the formation of NCl3 from N and Cl atoms, showing valence-shell electrons. (a) How many valence electrons does N have initially? (c) How many valence electrons surround the N in the NCl3 molecule? (d) How many valence electrons surround each Cl in the NCl3 molecule?
Guida verificata passo dopo passo1
Identify the number of valence electrons for each atom: Nitrogen (N) is in group 15 of the periodic table and has 5 valence electrons. Chlorine (Cl) is in group 17 and has 7 valence electrons.
Draw the Lewis symbol for a nitrogen atom, which consists of the symbol 'N' surrounded by 5 dots representing its valence electrons.
Draw the Lewis symbol for a chlorine atom, which consists of the symbol 'Cl' surrounded by 7 dots representing its valence electrons.
To form NCl3, nitrogen will share one of its valence electrons with each of the three chlorine atoms, forming three N-Cl single bonds. Each bond is represented by a pair of shared electrons (a line) between N and Cl in the Lewis structure.
In the NCl3 molecule, nitrogen is surrounded by 8 valence electrons (3 from the bonds and 5 of its own), and each chlorine atom is surrounded by 8 valence electrons (1 from the bond and 7 of its own).
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Valence Electrons
Valence electrons are the outermost electrons of an atom and are crucial for determining how an atom interacts with others. For nitrogen (N), there are five valence electrons, while chlorine (Cl) has seven. These electrons participate in chemical bonding, allowing atoms to achieve stable electron configurations through sharing or transferring electrons.
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02:12
Transition Metals Valence Electrons
Lewis Structures
Lewis structures are diagrams that represent the bonding between atoms in a molecule and the lone pairs of electrons that may exist. They use dots to represent valence electrons and lines to indicate bonds between atoms. In the case of NCl3, the Lewis structure illustrates how nitrogen shares its electrons with three chlorine atoms to form covalent bonds, achieving a stable configuration.
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04:28Lewis Dot Structures: Ions
Covalent Bonding
Covalent bonding occurs when two atoms share one or more pairs of electrons, allowing them to achieve full outer electron shells. In NCl3, nitrogen forms three covalent bonds with three chlorine atoms, sharing its five valence electrons to complete its octet, while each chlorine atom also achieves a stable configuration by sharing electrons with nitrogen.
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02:03Chemical Bonds
Pratica correlata
Domanda del libro di testo
Using Lewis symbols and Lewis structures, diagram the formation of PF3 from P and F atoms, showing valence-shell electrons. (a) How many valence electrons does P have initially? (c) How many valence electrons surround the P in the PF3 molecule? (d) How many valence electrons surround each P in the PF3 molecule?
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Domanda del libro di testo
Using Lewis symbols and Lewis structures, make a sketch of the formation of NCl3 from N and Cl atoms, showing valence-shell electrons. (b) How many bonds Cl has to make in order to achieve an octet?
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Domanda del libro di testo
Using Lewis symbols and Lewis structures, make a sketch of the formation of NCl3 from N and Cl atoms, showing valence-shell electrons. (e) How many lone pairs of electrons are in the NCl3 molecule?
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Domanda del libro di testo
(b) A substance, XY, formed from two different elements, melts at −33 °C. Is XY likely to be a covalent or an ionic substance?
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