Fichas
definitions,
Fichas del conjunto (13)
- 1Daltons atomic theoryAll matter is made up of particles called atoms. Atoms are indivisible and they can neither be created or destroyed
- 2MatterAnything that occupies space or has mass
- 3William crookesCathode rays are made up of negative particles.
- 4J.J ThompsonRays are negative. Pass through parallel plates.
- 5StoneyNamed them electrons
- 6MilikainOil drop experiment. Discovered charge of electron.
- 7Plum Pudding ModelSolid positive sphere with electrons imbedded.
- 8RutherfordDiscovered nucleus. Fired alpha particle at gold foil. Deflected. Small dense area of positive mass. Protons bombarded element with alpha particles knocked off positive particles.
- 9ChadwickNeutron. Fired alpha particles at beryllium.
- 10Energy LevelThe fixed energy value an electron of an atom may have.
- 11Heinsburgs Uncertainty PrincipleIt is impossible to study at the same time both the velocity and the position of an electron.
- 12An orbitIs an area where an electron can be found
- 13An OrbitalA region in space where there is high probability of finding an electron
Información
- Descripción
- leaving cert (the atom) chemistry Fichas sobre definitions,, creado por alannahsmyth305 el 01/06/2014.
- Creado por
- alannahsmyth305
- Visitas
- 16
- Valoración