2274733
Descripción
Test por ainearrigan, actualizado hace más de 1 año
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Creado por ainearrigan
hace más de 9 años
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Pregunta 1
Pregunta
John Daltons 1808 atomic theories. Tick the correct answers.
Respuesta
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All matter is made up of small identical particles
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There were only 4 elements
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particles named atoms could be broken into smaller particles
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mass could be created
Pregunta 2
Pregunta
William Cooke's cathode ray tube proved the existence of
Respuesta
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that charged particles were being emitted by the possitive cathode ray
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that charged particles were being emitted by the negative cathode ray
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that atoms were indivisible
Pregunta 3
Pregunta
J.J. Thomson proved the existence of electrons by
Respuesta
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placing a negative plate near the cathode ray tube
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seeing the deflection of the rays when a positive plate was placed near the cathode ray tube
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the colour of the ray changed
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he did not prove the existence of electrons
Pregunta 4
Pregunta
Name the scientist that measured the charge of the electron
Respuesta
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Dalton
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Einstein
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Millikan
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Rutherford
Pregunta 5
Pregunta
Thomson believed that the atom was made up like
Respuesta
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a cheesecake - a layer of a positive charged and a layer of negatively charged
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a wheel on a car - positive center with a negative spherical rim
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a plum pudding - a mainly positive sphere with negatively charged electrons embedded in it
Pregunta 6
Pregunta
The results of Rutherford's experiment
Respuesta
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Atoms were indivisible
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Atoms were composed of mainly negative spheres
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Atoms were composed of mainly empty space
Pregunta 7
Pregunta
Chadwick is known for the discovery of
Respuesta
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the neutron
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the alpha particle
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the proton
Pregunta 8
Pregunta
Errors that occurred when Johann Dobereiner tried to organise the known elements into triads
Respuesta
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they didnt know there atomic weights
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There wasnt enough known about the properties of the elements
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Only a few elements could be organised in this way
Pregunta 9
Pregunta
The anode is the
Respuesta
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positively charged electrode
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negatively charged electrode
Pregunta 10
Pregunta
A mass spectrometer can be used to measure
Respuesta
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measure the wavelength of light
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measure the mass and abundance of isotopes
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measure the size of the magnetic field
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