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Z chap 3 and 4

Z chem vocab for chapter 3 and 4

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