Examlex
Standing freshwater is called a lotic system.
Lewis Structure
A graphical representation of molecules showing how valence electrons are distributed among atoms, and where dots and lines represent electrons and bonds, respectively.
Water
A molecule composed of two hydrogen atoms bonded to one oxygen atom, essential for all forms of life.
Helium
The second lightest and second most abundant element in the universe, a noble gas that remains liquid at the lowest temperatures.
Lewis Structure
A diagrammatic method for representing the valence electron configuration of atoms, ions, and molecules, indicating bonds and lone pairs.
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