01:119:115 Lecture Notes - Lecture 2: Heat Capacity, Surface Tension, Covalent Bond
10 Mar 2016
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Scientific process: observation, background, hypothesis predictions (forms logically from hypothesis, experiments/observations, evaluate. If incorrect prediction, go back to hypothesis/predictions & revise then repeat & experiments/observations & evaluate. If correct prediction, repeat & verify that prediction is correct. If unsuccessful, then go back to hypothesis & repeat steps again. If successful then ask a new set of questions: hypothesis has to be testable & falsifiable. Chemistry: electrons subatomic particles, moves rapidly through atomic nucleus, -1 charge, potential energy energy that possesses due to its location or structure. Used to do work, once used work is restored: electrons & energy electrons located in distinct shells, each shell has average distance from nucleus & e level. Has potential e due to distance from nucleus. Absorb e to move to higher shell, release e falls to: valance electrons lower shell. 3d space where electrons are found 90% of time. Orbitals have distinct size & shape: electron orbitals.
