Discovery of the atom (Edexcel GCSE Physics): Flashcards
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Greek atomic model
Greek atomic model
Tiny spheres which cannot be divided
Thomson's Plum Pudding Model
Thomson's Plum Pudding Model
Ball of positive charge with negative electrons embedded in it
Year of Rutherford's alpha scattering experiment
Year of Rutherford's alpha scattering experiment
1909
Particles fired in Rutherford's experiment
Particles fired in Rutherford's experiment
Alpha particles (positively charged)
Material used in Rutherford's experiment
Material used in Rutherford's experiment
Thin sheet of gold foil
What 'most particles went through' shows
What 'most particles went through' shows
Atom is mostly empty space
What 'some deflected' shows in Rutherford exp.
What 'some deflected' shows in Rutherford exp.
Centre has positive charge
What 'some bounced back' shows in Rutherford exp.
What 'some bounced back' shows in Rutherford exp.
Mass is concentrated in the centre
Bohr's model key feature
Bohr's model key feature
Electrons orbit nucleus at specific distances
What electron orbits are called
What electron orbits are called
Energy levels or shells
What the nucleus contains
What the nucleus contains
Protons and neutrons
Where electrons are located in the atom
Where electrons are located in the atom
Energy levels or shells around the nucleus
Chadwick's discovery
Chadwick's discovery
The neutron
Year associated with Dalton
Year associated with Dalton
1803
Year associated with Thomson
Year associated with Thomson
1897