0
I think the most prolific experiment to discover the atom and its general structure was the use of and electron gun firing a steady beam of electrons at a thin piece of metal.
the discovery was that electrons didn't pass straight through, or the beam didn't just stop when it hit the surface of the metal. This told us several things, one that this supposedly solid metal wasn't solid and was in fact mostly empty space, and it also proved due to reflections of some electrons that the center of an atom was charged so it would repel the negative electron.
Actually this experiment was not performed with electrons from an electron gun, but with alpha particles emitted from a sample of radium and collimated by a hole in a piece of lead. The alpha particles being positively charged are strongly repelled by the positive nucleus causing them to sometimes rebound directly backwards, electrons being negatively charged are attracted by the positive nucleus and thus only scatter in the forward direction.
Wiki User
∙ 10y ago
Add your answer:
Earn +20 pts
Who discovered the theory of reletivity?
The theory of relativity was developed by Albert Einstein.
How heavy was the atomic bomb?
'Little Boy' the atomic bomb used on Hiroshima weighed 8,900 pounds whereas 'Fat Man' , the atomic weapon used on Nagasaki weighed 10,200 pounds .
What is used as a trigger in a hydrogen bomb?
An atomic bomb.
Why is atomic clock used?
The frequency of the atom defines a second and used for international time.
What atomic model is used today?
electron cloud model
Who is credited with the first atomic theory based on expiramental evidence?
scientific method used in the development of atomic theory
Although Dalton's atomic theory was rejected at first he used his theory to do what that soon resulted in his theory being accepted by scientists?
Instead of just stating his own personal opinions John Dalton cited evidence to support his atomic theory. The giving of evidence - which could be proved or disproved by others - was what soon resulted in his theory being accepted by scientists.
What kinds of evidence is used to support the theory that matter is composed of atoms?
Discoveries of physics in the 20th century: electrons, protons, neutrons, radioactivity, nuclear reactions, atomic force microscopy and many others.
What type of information Alfred wegner use on his theory?
He used evidence from landform, climate, and fossils to support his theory of the continental drift.
What are current theries that conflict with Darwin's theory what evidence is used to support thses theories?
Intelligent design, Hovind Theory Added: The above are not scientific theories but more ideological assertions in nature. No positive evidence supports either assertion.
What pieces of evidence Alfred wegener used to support his theory?
The pieces of evidence Alfred Wegener used to support his theory about continental drift were; Puzzle Fit, Fossil evidence from animals that were once on the same continent, geologic evidence like mountain chains that were connected and now split apart, and ice sheets. Thank you for reading this article and I hoped it answered your question!
What form of evidence is used to to support the big bang theory?
The redshift of distant galaxies, which is normally attributed to the Doppler effect.=========================Comment #1:It's important to include in the answer the fact that the question speaks ofhow science is NOT done. Evidence is not used to support theory. Theoryis the attempt to explain existing evidence. THAT's how science works.
How do scientists know that a new theory is accurate?
Because all of the observations and evidence are used for support.
What is the experimental design john Dalton used in atomic theory?
revived the atomic theory and stated the law of Partial Pressures of gases
Astronomers use various tools to gather evidence in support of the Big Bang Theory What are two tools used?
Real scientists do not "gather evidence in support of" any theory. The technical term for that kind of thing is "cherry-picking". Real scientists build a theory to explain the evidence that they have already gathered, and then test the theory to see whether it holds water. The easiest, fastest way to make sure that you are regarded as a wingnut by real scientists is to adopt or invent a theory, and then spend your time trying to prove it.
What 3 pieces of evidence did Alfred Wegener use to support his theory of continental drift?
he used fossils, glacial indentations, and different types of rock.
What scientific theory was used to prove air takes up space?
Atomic theory
