Test
Atomic history
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Preguntas del test (10)
1John Daltons 1808 atomic theories. Tick the correct answers.
- AAll matter is made up of small identical particles
- BThere were only 4 elements
- Cparticles named atoms could be broken into smaller particles
- Dmass could be created
2William Cooke's cathode ray tube proved the existence of
- Athat charged particles were being emitted by the possitive cathode ray
- Bthat charged particles were being emitted by the negative cathode ray
- Cthat atoms were indivisible
3J.J. Thomson proved the existence of electrons by
- Aplacing a negative plate near the cathode ray tube
- Bseeing the deflection of the rays when a positive plate was placed near the cathode ray tube
- Cthe colour of the ray changed
- Dhe did not prove the existence of electrons
4Name the scientist that measured the charge of the electron
- ADalton
- BEinstein
- CMillikan
- DRutherford
5Thomson believed that the atom was made up like
- Aa cheesecake - a layer of a positive charged and a layer of negatively charged
- Ba wheel on a car - positive center with a negative spherical rim
- Ca plum pudding - a mainly positive sphere with negatively charged electrons embedded in it
6The results of Rutherford's experiment
- AAtoms were indivisible
- BAtoms were composed of mainly negative spheres
- CAtoms were composed of mainly empty space
7Chadwick is known for the discovery of
- Athe neutron
- Bthe alpha particle
- Cthe proton
8Errors that occurred when Johann Dobereiner tried to organise the known elements into triads
- Athey didnt know there atomic weights
- BThere wasnt enough known about the properties of the elements
- COnly a few elements could be organised in this way
9The anode is the
- Apositively charged electrode
- Bnegatively charged electrode
10A mass spectrometer can be used to measure
- Ameasure the wavelength of light
- Bmeasure the mass and abundance of isotopes
- Cmeasure the size of the magnetic field
Información
- Descripción
- Test sobre Atomic history , creado por ainearrigan el 14/03/2015.
- Autor
- ainearrigan
- Idioma
- English
- Visitas
- 88
- Etiquetas
- Valoración
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