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What scientist said most of the mass of the atom is in tiny dense positively charged nucleus?
Ernest Rutherford suggested that most of the mass of the atom is located in the nucleus. He came to this conclusion after finding the results on his famous gold foil experiment. This is where he fired radio active particles through very thin metal foils, and detected them using screens covered in zinc sulphide.
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What experiment convinced Ernest Rutherford thet atom has a small positively charged nucleus?
The gold foil experiment convinced Ernest Rutherford that the atom has a small positively charged nucleus. In this experiment, alpha particles were shot at a thin gold foil. The fact that some of the alpha particles were deflected and even bounced back led Rutherford to conclude that atoms have a small, dense, positively charged nucleus.
Rutherfords experiments lead to the discovery of what?
Rutherford's experiments led to the discovery of the nucleus of an atom and the existence of protons within it. By conducting the famous gold foil experiment, Rutherford concluded that atoms have a small, dense, positively charged center containing protons.
What did Rutherford infer as a result of his observations?
Rutherford Discovered Many key factors of the atom. Especially about Protons and Electrons. He Did Not Know about neutrons. He Concluded That The atoms electron cloud was positive and electron floated around it like chocolate chips in a cookie.
What structure of the atom has been described as having a dense center that contains subatomic particles?
The structure of the atom that has been described as having a dense center that contains subatomic particles is the nucleus. The nucleus is composed of positively charged protons and neutral neutrons, tightly packed together in the center of the atom.
Rutherfords gold foil experiment showed that the atomic nucleus is?
very small relative to size of whole atomextremely densehighly positively charged
Small dense positively charged nucleus?
Yes.
Which part of a helium atom is positively charged?
nucleus the nucleus contains protons (positive) and neutrons (neutral). The nucleus is always the positively charged, dense center of an atom.
What is the tiny dense positively charged center of an atom?
Nucleus
Who said there's a small dense positively charged nucleus?
Ernest Rutherford
Which scientist discovered the existence of a center to the atom?
Ernest Rutherford is the scientist credited with discovering the existence of the atomic nucleus, which is the center of an atom. His famous gold foil experiment in 1909 demonstrated that atoms have a dense, positively charged nucleus at the center surrounded by negatively charged electrons orbiting around it.
What did Rutherford add to the atomic model?
He discovered that an atom has a very dense and very tiny positively charged nucleus. He named the positively charged particles protons.
Who was the scientist that showed existence of the nucleus?
Ernest Rutherford was the scientist who demonstrated the existence of the atomic nucleus through his famous gold foil experiment in 1909. He discovered that atoms have a small, dense core at their center that contains positively charged particles which he named protons.
Which model showed the discovery of a positively charged nucleus?
The Rutherford model was the model that showed the discovery of a positively charged nucleus. In this model, proposed by Ernest Rutherford in 1911, he suggested that atoms have a dense, positively charged nucleus at the center, with electrons orbiting around it. This model provided evidence for the nuclear nature of the atom.
How can you describe in words ruthfords model of the atom?
the atom as a tiny, dense, positively charged core called a nucleus
Who was the first to propose that most of the mass of an atom is in the tiny dense positively charged nucleus?
Greek philosopher Democritus.
What scientist described the atom as mostly empty space with small positively charged nucleus because of the positive charges of the protons was?
This description of the atom was proposed by Ernest Rutherford through his famous gold foil experiment in 1909. Rutherford's findings led to the development of the nuclear model of the atom, where electrons orbit a dense, positively charged nucleus at the center.
Who modeled the atom with electrons that move in fixed circular paths around a dense positively charged nucleus?
Niels Bohr
