unit 3
Quiz yourself by thinking what should be in
each of the black spaces below before clicking
on it to display the answer.
Help!
|
|
||||
|---|---|---|---|---|---|
| atom | smallest particle of element that retains it's identity
🗑
|
||||
| Democritus | - came up with idea of atom - believed atoms were indivisible and indestructable (WRONG)
🗑
|
||||
| Dalton's Atomic Theory | -- all elements made from atoms -- same element= same atom -- atoms combine in whole number ratios -- atoms can be rearranged but not changed into another atom
🗑
|
||||
| electron | negative charge
🗑
|
||||
| who discovered electron and what did they call them | JJ Thomson; corpuscles
🗑
|
||||
| JJ Thomson discovered... | charge to mass ratio
🗑
|
||||
| who did the Cathode Ray experiment | JJ Thomson
🗑
|
||||
| Millikan found | electrons charge which led to finding the mass
🗑
|
||||
| who did the oil drop experiemnt | Millikan
🗑
|
||||
| 4 things Thomson did | -- discovered electron -- cathode ray experiment -- charge:mass ratio -- Plum Pudding Model
🗑
|
||||
| proton | positive charge
🗑
|
||||
| neutron | neutral charge
🗑
|
||||
| proton (in chart) | symbol: p^+ mass (amu): 1 charge: 1+
🗑
|
||||
| neutron (in chart) | symbol: n^0 mass (amu): 1 charge: 0
🗑
|
||||
| electron (in chart) | symbol: e^- mass (amu): 0 charge: 1-
🗑
|
||||
| Gold-foil experiment | rutherford; shot alpha particles @ gold foil and particles went straight through; some were deflected at large angles
🗑
|
||||
| electrons are ____ of nucleus | outside
🗑
|
||||
| atomic number | number of protons
🗑
|
||||
| proton #= | electron #
🗑
|
||||
| nucleus contains most of | mass
🗑
|
||||
| round atomic | mass
🗑
|
||||
| neutron number= | mass #- atomic number
🗑
|
||||
| diff element= | diff number of protons
🗑
|
||||
| ion | same # of protons; diff number of electrons
🗑
|
||||
| isotope | same# of protons; diff number of neutrons
🗑
|
Review the information in the table. When you are ready to quiz yourself you can hide individual columns or the entire table. Then you can click on the empty cells to reveal the answer. Try to recall what will be displayed before clicking the empty cell.
To hide a column, click on the column name.
To hide the entire table, click on the "Hide All" button.
You may also shuffle the rows of the table by clicking on the "Shuffle" button.
Or sort by any of the columns using the down arrow next to any column heading.
If you know all the data on any row, you can temporarily remove it by tapping the trash can to the right of the row.
To hide a column, click on the column name.
To hide the entire table, click on the "Hide All" button.
You may also shuffle the rows of the table by clicking on the "Shuffle" button.
Or sort by any of the columns using the down arrow next to any column heading.
If you know all the data on any row, you can temporarily remove it by tapping the trash can to the right of the row.
Embed Code - If you would like this activity on your web page, copy the script below and paste it into your web page.
Normal Size Small Size show me how
Normal Size Small Size show me how
Created by:
carolineeasley
Popular Chemistry sets