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How did Rutherfords work help form the presentday model of the atom?
His experiment with the gold foil and the beam of positively charged particles proved that the nucleus of the atom is not solid. The beam past through the foil and bounced back. Rutherford's experiment contradicted Thomson's theory that an atom is solid.
Which fact about gold could not be discovered in Rutherford's experiment?
There are a few things that are true about gold that could not be discovered in Rutherford's experiment. There are solid atoms in the region that are called Nucleus.
What Rutherford discover in his gold foil experiment?
He found that the atom was made up of mostly empty space.
How did Rutherford discover nucleus?
The atomic nucleus was discovered by Ernest Ruthorford in the 1800's with his gold foil experiment. The earliest records of the biological (or cell) nucleus are from Antonie van Leeuwenhoek in 1719.
Is the nucleus hard?
The nucleus of atoms is dense and hard. If it was possible to have half a teaspoon of nuclei only it would have a mass of around 400 million tons. The nucleus of an atom is hard and incredibly dense. The nucleus of a cell is made of living material so is not particularly hard. Liquid flows between the nucleus and the cell.
What is a conclusion about the atom's structure gained from Rutherford's gold foil-alpha particle experiments?
Rutherford's gold foil-alpha particle experiments led to the conclusion that atoms have a small, dense, positively charged nucleus at the center, surrounded by mostly empty space where electrons orbit. This discovery revolutionized the understanding of atomic structure, disproving the earlier model of the atom as a solid, indivisible sphere.
How did Rutherford's actual results differ from the expected results?
Rutherford's actual results from the gold foil experiment showed that the majority of alpha particles passed straight through the foil with some being deflected at large angles or even reflected back. This was unexpected as it contradicted the prevailing model of the atom as a solid sphere. The unexpected deflections led to the proposal of the nuclear model of the atom with a small, dense nucleus at the center.
Will a solid flow up?
This depends on how dense the solid is, and how dense the liquid is.
What is the dense section of the head of a comet?
The dense section of a comet's head is called the nucleus. It is composed of ice, rock, and dust, typically ranging in size from a few hundred meters to tens of kilometers. The nucleus is the solid core of the comet from which gas and dust are released to form the comet's coma and tail when it gets closer to the Sun.
What is more dense?
a solid is more dense
What did rutherford's gold foil experiment show?
Rutherford's gold foil experiment showed that atoms have a small, positively charged nucleus at the center, surrounded by mostly empty space where electrons orbit. This disproved the "plum pudding" model of the atom and led to the development of the planetary model of the atom.
How did Ernest Rutherford make a contribution to the development of the atom?
Rutherford shot subatomic alpha peticles (radiation) at gold foil and realized that most of the particles passed through the gold without interacting with it. This led to a revolutionary idea that atoms are mostly empty space and created the model of a nucleus surrounded by, but not connected to, it's electrons. An analogy I sometimes use is the idea of shooting BB's at a solid wall or at a chain link fence. None will pass through the wall but most will go right through the fence without ever touching it.
