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Dmitri Ivanenko proposed the idea of a neutron and proton nucleus in 1932, the nucleus was itself discovered in 1911 by Ernest Rutherford while reviewing the famous Geiger--Marsden experiment of a few years previous.

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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.


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


Which statement describes James Chadwicks discovery He discovered that the atomic nucleus is a dense positively charged mass He discovered negatively charged atomic particles that were deflected by a?

an electrical neutral particle from the atomic nucleus


What part of the atom was discovered by Rutherford?

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 said there's a small dense positively charged nucleus?

Ernest Rutherford


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.


Who explained the behavior of positively charged particles being deflected from a metal foils as the nucleus?

Ernest Rutherford explained the behavior of positively charged particles being deflected from metal foils as they interacted with the nucleus of the atom in his famous gold foil experiment. This experiment led to the discovery of the atomic nucleus as a small, dense, positively charged center within the atom.


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.


Who discovered the nucleus using his gold foil experiment?

Ernest Rutherford is the scientist who discovered the nucleus through his gold foil experiment in 1909. He observed that most of the alpha particles passed through the foil, but some were deflected, leading him to propose the existence of a dense, positively charged nucleus at the center of an atom.


What did Rutherford proposed with regards to the structure of atoms?

Rutherford discovered the atomic nucleus and the proton. Rutherford don't discovered the atom. 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.