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Sem título
Flashcards do conjunto (14)
- 1electron mass proton mass neutron mass0
1
1 - 2electron charge proton charge neutron charge-1
+1
0 - 3how to find amount of protonsatomic number
- 4how to find the number of electronsatomic number
- 5how to find the number of neutronsmass number- proton number
- 6isotope defintitiona atom that has the same number of protons but different numbers of neutrons
- 7element defa substance made up of atoms that all contain the same number of protons
- 8compound defa substance made up of two or more elements chemically combined together
- 9mixture defa combination of two or more substances (elements or compounds) not chemically joined together
- 10molecule defa group of atoms that are held together by covalent bonds (non metals)
- 11diffusionis the movement of particles with each particle moving in its own direction
only happens with liquids or gases - 12why is diffusion slower in liquidsbecause the liqucid particles arent free to move whereas the gas particles are
- 13why is diffusion slow?because the particles movie in different directions diffusion is a random process
- 14what experiment shows that light particles diffuse faster than heavy ones?hydrogen chloride and ammonia gas
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- FlashCards sobre Sem título, criado por Abi Lowless em 20-10-2014.
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- Abi Lowless
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