CHEM 1300- Midterm Exam Guide - Comprehensive Notes for the exam ( 12 pages long!)

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Energy: the capacity to do work, the ability of one physical system to do work on in another physical system, work is force acting through a distance, types of energy important to chemists: Kinetic energy: every moving object has kinetic energy which is dependent on the velocity(v) and mass(m) of an object, ekinetic = (cid:2778)(cid:2779)(cid:2779, 1 joule = 1j = 1 (cid:3118) (cid:3046)(cid:3118) Characteristics of atom: atoms, possess mass, contain positive nuclei, contain electrons, occupy volume, attract one another, combine to form molecules. Characteristics of light: the tool for studying the structure of atoms, molecules, and materials is electromagnetic radiation, modern technology largely based on the interaction of electromagnetic radiation and matter, (cid:862)light(cid:863) is just o(cid:374)e pa(cid:396)t of the elect(cid:396)o(cid:373)ag(cid:374)etic spect(cid:396)u(cid:373) It is not dependent on the intensity of the light: the greater the intensity of light, the more photons, but if no individual photon has enough energy to remove an electron, then none are ejected.

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