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molecule neutral, polyatomic ion with charge
A '''molecule''' is a group of two or more [[atom]]s linked together by [[covalent bond]]s to form one unit. A molecule can have as few as two atoms, or as many as several thousand, as in a [[polymer]].
A '''molecule''' is a group of two or more [[atom]]s linked together by [[covalent bond]]s to form one unit. A molecule can have as few as two atoms, or as many as several thousand, as in a [[polymer]]. A molecule does not have electrical [[charge]], a related concept (with charge) is a [[polyatomic ion]].
Most molecules are composed of two or more elements, but they can also be composed of multiple atoms from the same element. Single element, bimolecular molecules include many elementary [[gas]]es, such as [[oxygen]] (O<sub>2</sub>), [[hydrogen]] (H<sub>2</sub>) and [[fluorine]] (F<sub>2</sub>). Single element compounds also include man-made compounds such as [[buckminsterfullerene]]s, which are "balls" of 60 carbon atoms, as well as natural compounds like [[graphite]], [[diamond]]s, and many [[metal]]s.
Most molecules are composed of two or more elements, but they can also be composed of multiple atoms from the same element. Single element, bimolecular molecules include many elementary [[gas]]es, such as [[oxygen]] (O<sub>2</sub>), [[hydrogen]] (H<sub>2</sub>) and [[fluorine]] (F<sub>2</sub>). Single element compounds also include man-made compounds such as [[buckminsterfullerene]]s, which are "balls" of 60 carbon atoms, as well as natural compounds like [[graphite]], [[diamond]]s, and many [[metal]]s.