Reading...
Play button
Play button
Use LEFT and RIGHT arrow keys to navigate between flashcards;
Use UP and DOWN arrow keys to flip the card;
H to show hint;
A reads text to speech;
28 Cards in this Set
- Front
- Back
|
Thomas
|
1897, electron, cathone ray tube, plum pudding model
|
|
|
Rutherford
|
1919, proton, radioactivity, gold foil, magnetic field, some deflected, planetary model, nucleus, mostly empty space
|
|
|
Chadwick
|
1932, neutron,
|
|
|
Identity
|
proton
|
|
|
chem properties
|
electron
|
|
|
mass
|
neutron and proton
|
|
|
neutron/proton actual mass
|
1.67 x 10^-27
|
|
|
how did isotope change Dalton theory
|
same element can have different number of neutron
|
|
|
all elements are
|
neutral
|
|
|
First column
|
alkalai
|
|
|
second column
|
alkalaline
|
|
|
middle
|
transitory
|
|
|
second to last
|
halogens
|
|
|
last
|
noble gases
|
|
|
why is lead a worry in childrens toys?
|
it becomes sweet
|
|
|
how did romans use lead?
|
pipes, tableware, silver coins
|
|
|
why lead in paint
|
bright, covering power
|
|
|
lead replaced with
|
titanium
|
|
|
effects of lead
|
messes with transcription of proteins
|
|
|
what was the source of iron before the middle ages?
|
meteorites
|
|
|
Iron is found in what cell
|
hemoglobin
|
|
|
mercury =
|
quicksilver
|
|
|
cinnabar
|
mercury/sulfar
|
|
|
gold conveted?
|
inert, pretty
|
|
|
who redifined element?
|
robert boyle
|
|
|
Joseph Priestley
|
many things in air
|
|
|
filament of bulb made of
|
tungsten
|
|
|
table of elements
|
dmitri mendeleyev
|
