Chemistry C1 0.0 / 5 ? ChemistryParticle modelGCSEAll boards Created by: wrighthannahCreated on: 21-11-16 16:54 What is a physical change? Reversible change 1 of 12 what did Joseph Thomson discover? Plum Pudding model 2 of 12 What did Ernest Rutherford do? split an atom/discovered the nucleus/gold foil 3 of 12 What did John Dalton discover? Elements are made up of one kind of atom? Billard ball 4 of 12 What did Neils Bohr discover? Electrons are in fixed shells 5 of 12 What did Geiger and Marsden Do? Gold foil experiment/ fired a beam of alpha particles at a thin piece of gold foil. the passage of alpha particles was then recorded on a screen. 6 of 12 What are Ions? changed atoms 7 of 12 What is electron configuration? arrangements of electrons of an atom 8 of 12 What is the Mass number? Total number of protons and neutrons/ top number 9 of 12 What is the Atomic number/proton number? Bottom number/number of protons 10 of 12 What is Relative atomic mass? Atoms of different elements weigh different amounts . 11 of 12 What is Relative formula mass? The mass of a molecule in comparison to the mass of hydrogen which is taken as 1. 12 of 12
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