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Ch.11 - Chemical Bonding II: Molecular Shapes, VSEPR & MO Theory
Tro - Chemistry: A Molecular Approach 6th Edition
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Tutti i libri di testoTro 6th EditionCh.11 - Chemical Bonding II: Molecular Shapes, VSEPR & MO TheoryProblema 54c
Capitolo 11, Problema 54c

The valence electron configurations of several atoms are shown here. How many bonds can each atom make without hybridization? c. Be 2s2

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Identify the valence electron configuration of the atom. For beryllium (Be), the valence electron configuration is \(2s^2\).
Determine the number of valence electrons available for bonding. Beryllium has 2 valence electrons in the 2s orbital.
Consider the concept of hybridization. Without hybridization, beryllium can only use its available valence electrons for bonding.
Recognize that beryllium can form bonds by using its valence electrons to overlap with orbitals of other atoms. Each unpaired electron can form one bond.
Since beryllium has no unpaired electrons in its ground state configuration (\(2s^2\)), it cannot form any bonds without hybridization.

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Valence Electrons

Valence electrons are the outermost electrons of an atom and are crucial in determining how an atom can bond with others. The number of valence electrons influences the atom's ability to form bonds, as these electrons are involved in chemical reactions and bond formation.
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Bonding Capacity

The bonding capacity of an atom refers to the maximum number of bonds it can form with other atoms. This capacity is determined by the number of unpaired valence electrons available for bonding. For example, an atom with two unpaired electrons can typically form two bonds.
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Hybridization

Hybridization is a concept in chemistry that describes the mixing of atomic orbitals to form new hybrid orbitals, which can accommodate bonding. However, the question specifies 'without hybridization,' meaning we only consider the original atomic orbitals and their unpaired electrons for bond formation.
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Hybridization
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Write orbital diagrams (boxes with arrows in them) to represent the electron configuration of carbon before and after sp3 hybridization.

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