chemistry

chemistry

A Story by Pandamoon
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this is my chem notes really tiny.

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Energy-capacity to do work. 3types, kinetic-motion,potential-stored,radient-heat. Jole-SI uit of energy after james joule. 1cal=4.184 J.Energy no crate or destroyed-conservation of energy, by james joule. 1st thmometer by galileo. 1st good thermometer by Gabriel Fahrenheit. Anders celcius made scale, 0 is water frezing point, 100 boiling point.F=Cx1.8t32. C=F-32/1.8. K=Ct237. C=K-273. Kelvin, SI unit 4temp. Like Celsius but 0is absolute 0. Matter has 6states, solid,liquid,gas,plasma,bose-einstein,fermion. Physical prop observe without altering.Alter to observing chemical prop. Conservation of mater, by antonie Lavoisier, no destroy or creat. Elements no broken down. Compounds 2or more elements combined.Heterogeneous-filtration. Homogeneous-distillation,crystallization,chromatography.Jhon Dalton,theory of matter- element made of small particales called atoms,all atoms of same element identical,atoms no crate or destroy,compound has same #&kind of atoms. Michael faraday- structure of atom related to electricity. Ben Fraklin found 2 charges.J.J Thomson-cathode ray tube made of negative particals,Cathode is neg,Anode positive,named neg particcals electrons. Rbert Millikan-oil drop,electron is 9.11x10-28g. Henri Becquerel, found radioactivity by mistake. Put uranium on film. Curies found radium&polonium so given credit for finding radioactivity.ernest Rutherford, father of chem, found +particals named them alpha, found �"particals named them beta, nutral named beta. Daltons madel of atom hard&round. Thomsons -&+charges evenly distributed. Rutherfords +n nucleus&- outside nucleus.Bhors protons and neutrons n nucleus&electrons orbiting outside nucleus. Protons&electrons=atomic#. Neutrons=atomic mass-atomic#. Orbit,1-2,2-8,3-8,4-18,5-18,6-32,7-32.Henery Moseley-worked under Rutherford, found identity of atoms comes from #of +charges,named proton. +ions lose electrons, -gain. Isotopes-atoms w/ same # of protons but diff # of neutrons. Kinds of radiation atoms hve-alpha-low penetration,beta-mid penetration,gamma-no penetration.Energy measured in quantum.d sublevel starts at 3.Dobereiner-triads. Newland-octaves.Mendeleev-atomic mass,left blanks.metals-left side of stair.Nonmetals left.Semimeatals touch. Atomic radii increases down&left. Ionization-energey needed 2remove1electron.Electronegativity up when move up and left.metal-nonmetal,metal name same non goes 2ide.metal-poly,both same. Trans metal-nonmetal, trans same roman non gets ide.Trans-poly, same but roman.when both non use prefix and ide.ide=hydro&ic.ate=ic.ite=ous.linaer=3.trigonal=4.tetrahedral=5.pyramidal =4&:

Naturel law-tested and come out same. Theory-tested no proven. Variable-thing being tested.mass-amount of matter.Derived unit-formed from base units.Density-ratio of mass and volume.Dependant variable-change due 2outside forces.acuracy-mesurment close 2 standered.dimensional analysis-converting between units.Compound-2or more elements chemically combined. Element-cannot be separated anymore. Pure substance-unique set of physical&chemical props.Miture-blend of2 or more substances.matter-anything tht has mass&volume.Atom-smallestpart of element retaning chemical identity.Electron-negative.atomic mass unit-expressed mass of 1unit or partical.atomic mass-adverage of existing isotopes in a element. Nuclear reaction-reaction tht changes nucleus of atom. Radioactive decay-radiation atoms emit while decomposing. Nuclear equation-equation keeps track of reactions compontents.Amplitude-origin to trough. Frequency-higeth of whole wave. Crest-top of wave. Wave leangth-one crest to another. Trough-lowest point on wave.quantum-energy absorbed per electron group. Quantum #-# assigned to orbit.Ground state-state below level 1. Excited state-first state in electron config.electron density-how dense a orbit is. Orbital-area where electrons r found.Electron congfig-energy level/sublevel/#of electrons.

© 2012 Pandamoon


Author's Note

Pandamoon
This is my notes for chemistry half really tiny LOLOLOLOLOL.

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Added on January 19, 2012
Last Updated on January 19, 2012

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Pandamoon
Pandamoon

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