Exam One Study Guide - Chapters 1 2.1-2.8 6.1-9 7.1-7.6...

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Chapters 1; 2.1-2.8; 6.1-9, 7.1-7.6; 8.1-8.8 Basic skills: read the number of protons, neutrons, and electrons in an atom or an ion Number of Protons = Atomic Number Number of Electrons = Number of Protons = Atomic Number Number of Neutrons = Mass Number - Atomic Number distinguish Isotopes An isotope is an atom which contains a different number of neutrons in its nucleus than some other atom of the same element. read periodic table use atomic weights do calculations on natural abundance of isotopes use Avogadro's number 6.02 x 10 23 use SI units length meter m mass kilogram kg time second s electric current ampere A thermodynamic temperature kelvin K amount of substance mole mol understand the mole
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use valence numbers of common atoms to draw simple structures apply charges of common ions to get formulas of ionic compounds Thermochemistry: understand the 1 st law of thermodynamics energy is neither created nor destroyed, thus the energy of the universe is a constant define enthalpy change in energy of a system
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