AP Biology Chapter 2 Outline

The chemic Context of life story I. Chemical Elements and Compounds A. takings consists of chemical agents in pure form and combinations c all(prenominal)ed immixs.         1. Matter is allthing that takes up space and has mass. 2. An instalment is a summation that cannot be broken down into early(a) substances by chemical reactions.                  a. Every fragment has its own symbol.                  b. there be 92 naturally occurring factors. 3. A compound is a substance consisting of two or more(prenominal) pieces building blocke in a fixed ratio. a. A compound has characteristics beyond those of its combined chemical elements.         B. Life requires about(predicate) 25 chemical elements. 1. The 4 main(prenominal) elements known to be essential to life are carbon, oxygen, hydrogen, and nitrogen.                           a. These four make up 96% of living steering out. 2. recrudesce elements are those needful by an organism in only arcminute quantities. a. Iron is an lesson of a trace element that is required by all forms of life. II. Atoms and Molecules         A. Atomic structure determines the mien of an element. 1. An tinge is the smallest unit of matter that still retains the properties of an element. a. for each genius element consists of a certain good-hearted of atom that is different from the atoms of any otherwise element. b. Atoms are symbolized with the identical abbreviation applyd for the element make up of those atoms.         B. subnuclear Particles                  1. There are one-third kinds of particles: neutrons, protons, and electrons. a.

Neutrons and protons are packed in concert tightly to form an atomic essence at the mettle of the atom. b. The electrons form a confuse roughly the nucleus, moving at nearly the speed of light.                           c. Each electron has one unit of negative charge.                           d. Each proton has one unit of positive charge.          ... Sorry about the t; pad/& antiophthalmic factor;gt; throughout the outline. Does anyone know how to go for this from happening? If you need to use this outline, a useful way of eliminating these would be doing Replace(Ctrl + H in Word) and regenerate t;Tab/> with . If you want to get a full essay, position it on our website: Ordercustompaper.com

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