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Campbell Biology 9th Edition - Chapter 2 Flashcards

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The Chemical Context of Life

Terms : Hide Images
1200514761matteranything that has mass and takes up space0
1200514762elementany substance that cannot be broken down into simpler substances1
1200514763compounda substance made up of atoms of two or more different elements joined by chemical bonds2
1200514764essential elementselements required for an organism to survive, grow, and reproduce.3
1200514765trace elementsrequired by an organism in only minute quantities4
1200514766atomic numberthe number of protons in the nucleus of an atom5
1200514767mass numberthe sum of the numbers of protons and neutrons in the nucleus of an atom6
1200514768van der Waals interactionsweak attractions between molecules or parts of molecules that are brought about by localized charge fluctuations.7
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