0
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.
What else can I help you with?
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.
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.
