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What can stop alpha particles?
A sheet of notebook paper will stop alpha particles. Depending on their energy, alpha particles, which are helium-4 nuclei (two protons and two neutrons), will only travel a few feet in air. Use the link below to learn more.
What happend to alpha particles when they hit gold foil?
The nucleus of an atom takes up only a small fraction of the total space occupied by an atom. Most of the space is occupied by the electron cloud, where the comparatively massive alpha particles (helium nuclei) were virtually unaffected by their passage, even if they collided with many electrons.
What is the role of alpha particle in Rutherford experiment and why he had not taken proton instead of alpha particle?
Ernest Rutherford used alpha particles to bombard a thin gold foil. In the early 1900's, particle accelerators were new and worked on the same principle as the old TV sets (before the plasma and LED ones we have now) The alpha particle was emitted from radium bromide in to a vacuum tube with a large electric field applied. The alpha, with charge = +2 electrons, was accelerated in the electric field and made to hit the gold foil. By looking at the ways the alpha particles bounced off the foil, Rutherford formulated a model of the atomic structure more or less as we know it today - A dense nucleus and electrons floating around the outside. Basically, the vast majority of the atom volume is vacuum. He didn't use protons because there is no radioactive substance which emits protons. Only alpha emiitters (2p + 2n), beta elecron/positron emitters and gamme (high energy light) emitters exist naturally.
What simple sugar formed from photosynthesis produces the vast majority of what chemical for humans?
Glucose from photosynthesis provides the vast majority of chemical energy to living things.
Are all prokaryotes harmful?
No, the vast majority of prokaryotes are not harmful.
What was the fate of the vast majority of alpha particles in rutherford's gold-foil experiment?
The vast majority of alpha particles passed through the gold foil without being deflected, as the atom is mostly empty space. However, a small fraction of alpha particles were deflected at large angles, indicating the presence of a dense, positively charged nucleus in the atom.
What can stop alpha particles?
A sheet of notebook paper will stop alpha particles. Depending on their energy, alpha particles, which are helium-4 nuclei (two protons and two neutrons), will only travel a few feet in air. Use the link below to learn more.
Which particular observation of Rutherford do you think him to believe that the atoms is mostly empty space and that its mass is concentrrated in apositve nucleus?
The fact that the vast majority of the alpha particles got straight through led Rutherford to propose that the atom was composed primarily of empty space. The fact that backscattering occurred in 1 in 8000 alpha particles indicated that there was a small massive positively charged nucleus in the centre of the atom.
In Rutherfords experiment why wouldn't the electrons in the atoms of the gold foil affect the paths of the alpha particles?
Electrons are so small that they have no affect. The alpha particles were 2 protons and 2 neutrons being shot thru, even though the electrons have a negative charge..they are so small and take up so little space, the alpha particles probably n ever even came near them.
What happend to alpha particles when they hit gold foil?
The nucleus of an atom takes up only a small fraction of the total space occupied by an atom. Most of the space is occupied by the electron cloud, where the comparatively massive alpha particles (helium nuclei) were virtually unaffected by their passage, even if they collided with many electrons.
Where do the vast majority of pulmonary emboli originate?
where does the vast majority of pulmonary emboli orginate
Is the vast majority of the world's volcanoes are above sea level?
The vast majority of the world's volcanoes are above sea level.
Are gay men pedophiles?
The vast majority of gay men are not pedophiles, just as the vast majority of straight men are not pedophiles.
What are the vast majority of adjudications?
UNCONTESTED
What is the role of alpha particle in Rutherford experiment and why he had not taken proton instead of alpha particle?
Ernest Rutherford used alpha particles to bombard a thin gold foil. In the early 1900's, particle accelerators were new and worked on the same principle as the old TV sets (before the plasma and LED ones we have now) The alpha particle was emitted from radium bromide in to a vacuum tube with a large electric field applied. The alpha, with charge = +2 electrons, was accelerated in the electric field and made to hit the gold foil. By looking at the ways the alpha particles bounced off the foil, Rutherford formulated a model of the atomic structure more or less as we know it today - A dense nucleus and electrons floating around the outside. Basically, the vast majority of the atom volume is vacuum. He didn't use protons because there is no radioactive substance which emits protons. Only alpha emiitters (2p + 2n), beta elecron/positron emitters and gamme (high energy light) emitters exist naturally.
Are Britons racist?
In the vast majority of cases, no.
What simple sugar formed from photosynthesis produces the vast majority of what chemical for humans?
Glucose from photosynthesis provides the vast majority of chemical energy to living things.
