Examlex
The effectiveness of the pollution prevention approach is best illustrated by the sharp drop in atmospheric lead.
Valence Shell
Outermost orbital shell in an atom. The number of electrons in the valence plays a role in defining the electrical and physical characteristics of an element.
Chemical Properties
Characteristics of a substance that dictate how it reacts with other substances to form new products.
Electrical Resistance
The measure of the difficulty electrons face in flowing through a conductor, resulting in heat generation and energy dissipation.
Sectional Area
Sectional area refers to the area of a particular cross-section of a material or structural element, significant in physics and engineering for calculating stress, resistance, and other material properties.
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