Atomic Structure Flashcards
Fe
Iron
Co
Cobalt
O
Oxygen
Atoms of different elements can be combined together to create _____
Compounds
Filtration is used to what?
Separate a solid from a liquid
Fractional distillation separates a mixture containing _____
liquids with _____
boiling points.
Many Different
How many types of distillation are there?
2
Who discovered the electron in 1897?
j.j. Thomson
Who discovered the proton in 1909?
Ernest Rutherford
Who discovered the neutron?
James Chadwick
What are atoms made up of?
A nucleus and orbiting electrons
What did the Plum Pudding Model depict?
Atom as a ball of positive charge with negative electrons mixed in
What came after Thomson’s Plum Pudding Model?
The Nuclear Model
What came after the Nuclear Model?
The Modern Model
What was the Nuclear Model?
A atoms mass concentrated in a central nucleus that contains protons