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Atomic model dudes

QuestionAnswer
Democritus Named atoms "atomos" which means uncuttable
Dalton Created the atomic theory and said atoms look like marbles
JJ Thomson Discovered the electron and called his model plum pudding
Rutherford With his gold foil experiment, discovered the nucleus and proton
Bohr Discovered electron shells and how they orbit
Chadwick Discovered the neutron
matter is anything that has mass and takes up space
true or false in a mixture substances are psychically combined True
what are the numbers on the PH scale 0-14
what has a definite shape and definite volume solid
what has no definite shape and definite volume liquid
what has no definite shape and volume gas
where is plasma found in stars
what are physical properties A physical property is any property that is measurable with senses or tools
what are chemical properties A chemical property is any of a material's properties that becomes evident during, or after, a chemical reaction
what is the difference between a compound and an element a compound is 2 or more elements together and an element is just itself
what is the difference between a physical property and a chemical property physical you can see and mesure with a tool and chemical properties there needs to be some kind of chemical reaction to know what chemical properties the element(s) posses.
Heterogeneous mixtures are not evenly spread out (you can see the particles in the mixture)
Homogeneous mixtures have components that are evenly distributed out on a microscopic level( you cant see the different particles in the mixtures)
Created by: human1234
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