anonymous
  • anonymous
#1: Which of the following scientists came up with the first widely recognized atomic theory? A. John Dalton B. Antione Lavoisier C. Robert Millikan D. J.J. Thomson ***My answer: A. John Dalton is that right??
Chemistry
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katieb
  • katieb
I got my questions answered at brainly.com in under 10 minutes. Go to brainly.com now for free help!
anonymous
  • anonymous
#2: What do we now call the negative particles that Thomson said were parts of all atoms? A. protons B. neutrons C. electrons D. cathode rays **Not quite sure... :( Either B or C but idk for sure which one :(
anonymous
  • anonymous
hey! what do u think?? :D is #1 A. John Dalton?? and what bout #2??
.Sam.
  • .Sam.
You got the first one, as for the second one, remember that Protons are positively charged particle. Neutrons, as the name implied, has no charge. Electrons will be the opposite of protons, negatively charged.

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anonymous
  • anonymous
oh and #3 really fast.. i think i got this one right :) #3: Which of the following is Robert Millikan credited with discovering? A. the charge-to-mass ratio of the electron B. the charge of a neutron C. the mass of an electron D. the nucleus of the atom ***My answer: C. mass of an electron.. is that right???? :D
anonymous
  • anonymous
ohhh i see :) so my answer for #2 is C. electrons???
anonymous
  • anonymous
and does it look like #3 is correct?? :D
anonymous
  • anonymous
oh and #4 lol :) i think i got this one right too, but not 100% sure :P #4: Who discovered the electron? A. John Dalton B. Antoine Lavoisier C. Robert Millikan D. J.J. Thomson ***My answer : D. J.J. Thomson is that right?? :)
anonymous
  • anonymous
what do y'all think of #3 and #4??? :)
anonymous
  • anonymous
so far we have #1: A. John Dalton #2: C. electrons but did i get #3 and #4 right?? :D
.Sam.
  • .Sam.
You're right for Number 2, as for Number 3 is about the Milikan oil drop experiment and the charge on an electron is negatively charged which causes rise and fall by changing the voltage across the plates.
anonymous
  • anonymous
so #3 is C. mass of an electron??
.Sam.
  • .Sam.
Yes
anonymous
  • anonymous
and #4, did i get that right?? is it D. JJ Thomson??
.Sam.
  • .Sam.
Number 4 is D, you just memorize it.
anonymous
  • anonymous
awesome! :) thanks :) should i post my next 3 in here as well?? or in a new post?? what would u prefer??
.Sam.
  • .Sam.
I guess you just follow the code of conduct :)
anonymous
  • anonymous
what's that?? that i continue posting here?? idk lol
anonymous
  • anonymous
@.Sam. ?? :O
.Sam.
  • .Sam.
Create new post
anonymous
  • anonymous
oh okay lol :) i'll post a new one now the haha :)

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