BIO SCI 93 Lecture Notes - Lecture 1: Atomic Mass, Atomic Number, Thermodynamics

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BIO SCI 93 Full Course Notes
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BIO SCI 93 Full Course Notes
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Do not exchange heat, work or matter: closed systems- abel to exchange energy but not matter with their environment, open systems- may exchange any form of energy as well as matter with their environment. The laws of thermodynamics: the energy in an isolated system is constant. In an isolated system, the available energy can never increase, and its compliment, entropy. In an open system, the increase in the internal energy of a system is equal to the amount of energy added to the system by matter owing in and by heating. A system is which the sum is greater than its parts. Displays all sorts of wonderful properties its disorganized building blocks do not. Humans are mostly made out of oxygen, carbon, hydrogen, and nitrogen (96. 3%) Element"s atomic number- number of protons in its nucleus. Element"s mass number- sum of protons plus neutrons in the nucleus. Valence electrons- those the outermost shell, or valence shell.

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