Please Define the Following Key Terms

question 82

Essay

Please define the following key terms. Show Who? What? Where? When? Why Important?
-William Harvey

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Definitions:

Compound

refers to a substance formed by the chemical combination of two or more elements in definite proportions and with specific chemical properties.

σ* Molecular Orbital

An antibonding molecular orbital formed by the out-of-phase combination of atomic orbitals.

Nodes

Points along a standing wave where the wave amplitude is zero, or points in an atom where the probability of finding an electron is zero.

π Molecular Orbitals

Orbitals formed by the overlap of p orbitals on adjacent atoms, significant in determining the bonding and properties of molecules.