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Ernest Rutherford published his atomic theory describing the atom as having a central positive nucleus surrounded by negative orbiting electrons. This model suggested that most of the mass of the atom was contained in the small nucleus, and that the rest of the atom was mostly empty space. Rutherford came to this conclusion following the results of his famous gold foil experiment. This experiment involved the firing of alpha particles (helium nuclei) through minutely thin gold foils and detecting them using screens coated with zinc sulfide (a scintillator). Rutherford found that although the vast majority of particles passed straight through the foil approximately 1 in 8000 were deflected (even back towards the source of the particles) leading him to his theory that most of the atom was made up of 'empty space' with an incredibly dense nucleus in the centre.

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How discover is described by Rutherford?

Rutherford and collab. discovered the atomic nucleus.


When did Ernest Rutherford discover the nucleus of the atom?

in 1897


When did Bohr discover that most of an atom's mass is in the nucleus?

Bohr did not discover this. Ernest Rutherford 'discovered' the nucleus. This was done in 1911.


How did Ernest Rutherford discover nucleus?

Gold foil experiment.


Where did Rutherford discover the atmoic nucleus?

In the exact center of the atom.


What did Rutherford discover that Thomas did not understand?

That most of an atom's mass was packed in a central nucleus


What did Rutherford's discover that Thomson did not understand?

That most of an atom's mass was packed in a central nucleus


What did Rutherford discover in the core of an atom?

Rutherford discovered the atomic nucleus and the proton. 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.


Which atom did the scientist Rutherford discover?

Rutherford discovered the atomic nucleus and the proton. 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.


Who discover the electrons and protons?

Nucleus: ernest Rutherford neutron: James chadwick protons: ernest Rutherford electron: democritus atom: john Dalton


What did Rutherford discover about the volume of the nucleus?

Rutherford discovered that the nucleus occupies a very small volume compared to the overall size of the atom. He found that the nucleus is extremely dense and contains nearly all the mass of the atom, while the rest of the atom is mostly empty space.


What particle did Ernest Rutherford discover?

In 1911, Ernest Rutherford discovered the nucleus of the atom. Rutherford was born in New Zealand in 1871 and became known as the father of nuclear physics.