Flashcards
atomic theory test review
Cards in this deck (31)
- 1Democrituscoined term atom
his model - SOLID SPHERE MODEL - 2Daltonhe was father of the atomic theory
a) reintroduced atomic theory
model- INVISIBLE MODEL - 3Thomsondiscovered electrons and protons
a) used cathode ray device
model- PLUM PUDDING MODEL - 4Rutherforddiscovered the nucleus
a) used a device called gold foil experiment
model- - 5Chadwickdiscovered neutrons
model- - 6Bohrknown for the planetary model of the atom
model- - 7Millikandetermined the charge on the electrons
- 8Einsteinexplained the photoelectric effect
if light is shown on a piece of metal electrons can jump off - 9Plankknown for the quantum theory
Q.T -LIGHT TRAVELS IN PACKAGES CALLED PHOTONS - 10Avogadrocalculated the number of particles in an atom
6.02x 10^23 - 11Schrodingerknown for the modern model of the atom
ELECTRON CLOUD MODEL - 12Moseleyresolved discrepancies in the P.T
The elements on the p.t are arranged according to the number of protons - 13Dalton postulates #1EVERYTHING is made out of atoms
EX= pencil
apple
fridge
phone - 14Dalton's postulate #2atoms can COMBINE to form compounds
EX= H2O water
H202 hydrogen peroxide
OH hydroxide - 15daltons postulat #3atoms of the same element are IDENTICAL
EX= nitrogen= nitrogen
hydrogen = hydrogen
etc - 16daltons postulate #4atoms of different elements are DISSIMILAR
ex:
gold and potassium
sodium and silicon
etc - 17space travel programs1. star wars
2. star trek
3. star gate
4. back to the future - 18what is the current atomic modelSCHRODINGER'S MODEL
(present model has unlimited subatomic particles) - 19additional subatomic particles examples1.up
2.down
3. beauty
4. charm
5. neutrinos
6. baryons - 20how many subatomic particles are there10 NIGGGA !!!1
- 21E D S1. valence electrons- electrons outside shell of atom
2. group 1-8 has its respective valence electrons
3.11-18 us "10 minus rule" to determine V.E - 22E.D.S fro COMPOUNDS1. electrons must be paired
2. group 1-11 elements can never go in middle
3. the # of electrons around an element doubles up to 8
4. single, double, triple bonds are possible - 23types of bonds SINGLE BONDunion of 2 electrons or 1 election pair
ex : or ..
or I or _ - 24DOUBLE BONDunion of 4 electrons or 2 electron pairs
ex :: or II - 25TRIPLE BONDUNION OF 6 ELEMENTS OR 3 ELECTRONS
::: - 26HOW TO FIND EDS1. determine the # of valence electrons
2. write the symbol for the element
3. the # of electrons go around symbol clockwise - 27Types of bonds4. dative bonds
5.hydrogen bonds
6.vander waals forces - 28DATIVE BONDwhen one element donates both electrons to the union
- 29HYDROGEN BONDSunion between 2 hydrogen bonds
- 30VANDER WAALS FORCESan attraction between elements which do not bond
- 31—
Information
- Description
- 12th grade Chemistry Flashcards on atomic theory test review , created by Joanna Garcia on 09/10/2018.
- Created by
- Joanna Garcia
- Views
- 0
- Rating