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Covalent chemical bonds involve the sharing of a pair of valence electrons by two atoms, in contrast to the transfer of electrons in ionic bonds. Such bonds lead to stable molecules if they share electrons in such a way as to create a noble gas configuration for each atom.
To introduce the basic principles of covalent bonding, different types of molecular representations, bond polarity and its role in electronic density distributions, and physical properties of molecules.
1. What is a covalent bond? A covalent bond is a bond formed when two atoms share electrons. 2. Many elements found in nature exist as molecules . 3.
19 sie 2024 · Recognize bond characteristics of covalent compounds: bond length and bond polarity. Use electronegativity values to predict bond polarity.
The covalent bond in H 2 is the result of the overlap of two 1s atomic orbitals on adjacent H atoms, and each H atom contributes one electron to the covalent bond. The covalent bond forms because of the strong attractive forces between the bonding electrons in the overlapping region and the two H nuclei. The covalent bond in H
Valence electrons – those in unfilled shells. Filled shells more stable. Valence electrons are most available for bonding and tend to control the chemical properties. example: C (atomic number = 6) 1s2. 2s2 2p2.
Covalent Bonding: sharing of electron pairs. • Metallic Bonding: sharing of loosely held electrons. • How do these bonding models explain the properties of substances ? • Which elements will combine together to give each type of bond? • How many bonds will form between given atoms? • Classify the following substances by the type of bond: • CaF2.
