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Why did J.J. Thomson conclude that cathode rays were made up of small particles that had mass?
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Moving water that carries small particels of soil sand and gravel is called what?
Erosion-is the carrying small particles and other solids. (dirt, leaves, rocks and other particles)
Which subatomic particles have a mass so small it typically is ignored?
Electron
How do you break matter into small particles?
You build a "Large Hadron Collider".
Does smaller particles have bigger or small infiltration rate?
The bigger the particle the higher the infiltration rate is.
Why subatomic particles are called fendamental particles?
Not all of them are; the only direct subatomic part of the atom that is fundamental is the electron (which is a type of lepton.) Only particles made up of no smaller parts are called fundamental particles. For example, the proton (just like the neutron, except with a small difference) is not a fundamental particle because it is made of quarks, which are fundamental particles.
How did J J Thomson show that cathode rays are different from light?
Thomson appreciated in 1897 that the cathode rays are formed from negative electrically charged very small particles. These particles are the electrons. From this Thomson concluded that the atom is not indivisible and also that the atom must contain and a positive charged particle.
What did Thomson's cathode-ray tube experiments help scientists learn?
Thomson's cathode-ray tube experiments helped scientists learn about electrodes and that atoms were comprised of many small particles, which they did not know existed. They also learned from this tube that all the electrons were the same regardless of what elements they came from.
What did thomson's cathode ray tube experiments help scientists learn?
Thomson's cathode-ray tube experiments helped scientists learn about electrodes and that atoms were comprised of many small particles, which they did not know existed. They also learned from this tube that all the electrons were the same regardless of what elements they came from.
Who discovered small negatively charged particles inside an atom?
J.J Thomson
Who discovered that there are small negatively charged particles inside an atom?
J.j thomson
What feeling led Thomson to infer that partcles that are smaller than atoms do exist?
Well if there is more negative charge than .......................
What scientist said there are small negatively charged particles inside an atom?
Generally, the theoretical first is given to Richard Laming of England in 1851. More theoretical work and the term "electron" came from G. Johnstone Stoney between 1874 and 1891. The actual "discovery" is given to J. J. Thomson in 1897.
What were J J Thomson's scientific ideas called?
J.J. Thomson's scientific ideas were called the atomic theory. In 1897 he discovered the electron and came up with a new theory that atoms were made up of small particles.
What is meaning of perforated cathode?
The. Cathode plate consists of small holes known as perforated cathode plate
The discovery of the electron resulted from experiments using what?
There were no technologies. The atom was discovered by the ancient Greek's. They figured that eventually if you kept on dividing something, it would get so small that you wouldn't be able to divide it anymore. There would be just one tiny particle left. They called this particle the atom. Of course over time the atom proved not to be the smallest particle with the discovery of the proton, electron and neutron.
Why does rutherford's gold-foil experiment conclude that the atom is mostly empty space with a small massive positively charged center?
because few particles bounced back
What did Rutherford conclude about the sturcture of the atom?
A short answer for the Rutherford atomic model: the atom is composed from a central part - a nucleus, positively charged, surrounded by electrons - very small negative charged particles.
