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Chemical Bonding & Molecular Structure

4 terms


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Chemical Bonding & Molecular Structure

Tetrahedral Geometry

A molecular shape with four bonded atoms directed to the corners of a regular tetrahedron at 109.5°.

AX₄ degrees
Chemical Bonding & Molecular Structure

Three-Centre Two-Electron Bond

A bond in which a single pair of electrons is shared between three atoms rather than two.

A···H···B kJ/mol
Chemical Bonding & Molecular Structure

Trigonal Bipyramidal Geometry

A shape with five bonded atoms occupying three equatorial and two axial positions around a central atom.

AX₅ degrees
Chemical Bonding & Molecular Structure

Trigonal Planar Geometry

A flat molecular shape with three bonded atoms arranged around a central atom at 120°.

AX₃ degrees