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Z chap 3 and 4
Z chem vocab for chapter 3 and 4
| theory | content |
|---|---|
| Daltons atomic theory | all matter is made up of atoms, atoms can neither be created nor destroyed, atoms of a particular element are alike, atoms of different elements are different, a chem. change involves the union or separation of individual atoms. |
| law of conservation of matter | when a chemical reaciton takes place, matter is neither created or destroyed |
| law of constant composition | chemical compounds percent by mass must add up to be 100% total mass |
| electron | e- charged Thomson 1897 |
| neutron | n+ charged chadwick 1932 |
| proton | p+charged Thomson and Goldstein 1907 |
| mass # | #p +#n |
| atomic # | #p |
| law of mendeleev | chem. and phys. properties repeat themselves when elements are in increasing atomic mass |
| law of octaves | every 8 elements the chem.& phys. properties repeat themselves |
| size of elements to right | smaller |
| size of elements down | larger |
| cation | positive charged |
| anion | negative charge |
| ionization energy | energy used to remove an electron |
| distance from neucleus | closer stronger charge |
| metals | lose electrons (cation) |
| non metals | gain electrons (anion) |
| ionization energy | energy used to remove and electron |
| energy of electromagnetic radiation | e=hc/y |
| e | energy of elecromagnatic radiation |
| h | j's |
| c | speed of light |
| y | wavelength of electromagnetic radiation |
| quantized energy | energy occurs in discreet amount |
| maximum electron capacities in shells | 2n^2 |
| line spectra | electrons absorb energy from heat / light |
| electrons on higher levels | loose energy (we see as color ) |
| ground state | arrangement with lowest total energy |
| exited state | one or more electron is in higher shell even though there is room in lower energy shell |
| schrodinger heisenberg | the uncertainty priciple |
| the uncertainty principle | impossible to know where an electron is or where it is going |
| s orbital | spherical |
| p orbital | dumbbell |
| d orbital | looks like 4 leaf clover |
Created by:
k2berliner
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