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Who discovered that there is a small dense positively charged nucleus?
Wiki User
∙ 13y ago
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.
Wiki User
∙ 12y ago
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Small dense positively charged nucleus?
Yes.
What did Rutherford proposed?
He proposed a new model of the atom in which there is a small dense positively charged nucleus with negatively charged electrons around the outside. The electrons are far away in comparison to the size of nucleus, so the majority of the atom is made up of empty space.
What did Rutherford's gold-foil experiment help him conclude?
When Rutherford put the gold foil in front of the alpha-particle emitting source, he noticed a few things: 1. Some of the alpha particles passed through the gold foil 2. Some the particles were deflected 3. Some of the particles bounced back Rutherford concluded that an atom is made up of mostly empty space and the actual size of the atom is far smaller than the space it occupies.
Do you commonly hear or use the word atom?
atom as we all know is a basic unit of matter that consists of dense central nucleus surrounded by a cloud of negatively charged electrons. The atomic nucleus contains a mix of positively charged protons and electrically neutral neutrons. the word atom is not a commonly heard word reasons being is that it is the smallest recognised division of a chemical element hoping this helped!
Who discovered that electrons move in empty space in an atom?
It was Ernest Rutherford who discovered that atoms are mostly composed of empty space with electrons orbiting a very dense nucleus.
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.
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.
Small dense positively charged nucleus?
Yes.
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
Who said there's a small dense positively charged nucleus?
Ernest Rutherford
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 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 modeled the atom with electrons that move in fixed circular paths around a dense positively charged nucleus?
Niels Bohr
Which scientist discovered the existence of a center to the atom?
Ernest Rutherford determined that atoms contain a small, dense (not thick), positively charged nucleus.
Rutherfords experiments lead to the discovery of what?
Earnest Rutherford's experiment,"Gold Foil", led to the discovery the of a Small,dense and positively charged Nucleus
