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Rutherford
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What is the contributions of Ernest Rutherford?
Ernest Rutherford deduces the existence the atomic nucleus from alpha particle scattering experiments performed with Hans Geiger and Ernes Marsden.
What is the dense positively-charged mass in the center of an atom?
This can refer to either the nucleus or to an individual proton that makes up the nucleus. Because only protons and neutrons occupy the nucleus, it has a positive charge.
The Is the positively charged central core of an atom?
Nucleus is the positively charged central core of the atom. It was discovered by Sir Rutherford during the alpha particle scattering experiment. But later by Sir Chadwick neutrons were also discovered along with protons in the nucleus. The nucleus is positively charged, small and is heavier than alpha particles.
What year did ernest Rutherford make a contribution to the atomic model?
He didn't exactly "discover" the nucleus. In 1911 he theorized about the atom having its positive charges in a very small nucleus. In 1921 he postulated about the existence of the neutron in the nucleus. The first experiment to split the atom in a controlled manner was performed by him and two students in 1932.
The scattering of light by colloids is called?
the scattering of light by colloids is known as tyndall effect. it is named after the scientist who discovered it.
Who discovered the Raman effect in 1928?
The Raman effect, also known as Raman scattering, is the inelastic scattering of a photon. It was discovered by C. V. Raman and K. S. Kishnan in liquids. G. Landsberg and L. I. Mandelstam discovered it in crystals.
Rutherfords alpha scattering experiments showed that the charge on the nucleus of the atom must be?
The atomic nucleus is positive because contain protons.
Who invented the nucleus?
The (cell) nucleus is generally believed to have been discovered by Antonie van Leeuwenhoek. The nucleus of the atom was discovered by Ernest Rutherford.
Rutherfords alpha scattering experiment showed that the charge on the nucleus of the atom must be?
positive
What did Robert brown make to the cell theory?
a Scottish botanist, discovered the presence of nuclei within cells.
What did Rutherford discover atoms?
Rutherford by passing interpretation about the famous alpha particle scattering experiment came to the conclusion that the positively charged nucleus is of small size of the order of 10-15 m where as the atom size is of the order of 10-11m
Is the nucleus a very small region of the atom?
Yes. It was shown by Rutherford's alpha scattering experiment.
