Admin Table of Contents
- 1 Who said electrons move in circular paths?
- 2 Who said this theory led to the plum pudding model?
- 3 Who discovered the electron with a cathode ray tube experiment?
- 4 What was James Chadwick experiment?
- 5 Who said electrons are found in electron clouds?
- 6 Who said electrons are most likely to be in orbitals?
Who said electrons move in circular paths?
In the Bohr model of the atom, electrons travel in defined circular orbits around the nucleus. The orbits are labeled by an integer, the quantum number n.
When did Bohr discover that electrons can jump from a path in one level to a path in another level?
1913
Thus when an atom absorbs or gives off energy (as in light or heat), the electron jumps to higher or lower orbits. Bohr published these ideas in 1913 to mixed reaction.
Who said this theory led to the plum pudding model?
J.J. Thomson
In 1897, the English scientist named J.J. Thomson provided the first hint that an atom is made of even smaller particles. He discovered the presence of a negative particle in the atom – the electron. He proposed a model of the atom that is sometimes called the “Plum Pudding” model.
What is Niels Bohr experiment?
In 1913, Niels Bohr proposed a theory for the hydrogen atom, based on quantum theory that some physical quantities only take discrete values. Electrons move around a nucleus, but only in prescribed orbits, and If electrons jump to a lower-energy orbit, the difference is sent out as radiation.
Who discovered the electron with a cathode ray tube experiment?
During the 1880s and ’90s scientists searched cathode rays for the carrier of the electrical properties in matter. Their work culminated in the discovery by English physicist J.J. Thomson of the electron in 1897.
Which observation by Ernest Rutherford and his students refuted the plum pudding model?( 1 point?
When Rutherford shot α particles through gold foil, he found that most of the particles went through. Some scattered in various directions, and a few were even deflected back towards the source. He argued that the plum pudding model was incorrect.
What was James Chadwick experiment?
In 1932, the physicist James Chadwick conducted an experiment in which he bombarded Beryllium with alpha particles from the natural radioactive decay of Polonium. The resulting radiation showed high penetration through a lead shield, which could not be explained via the particles known at that time.
What scientist said electrons travel in definite paths?
What scientist said electrons travel in definite paths? A B Electrons move in large empty space of a Niels Bohr Discovered nucleus and coined term proto Rutherford 1911 Scientist contributing to Atomic Th Rutherford 1913 Scientist contributing to Atomic Th Niels Bohr
Who said electrons are found in electron clouds?
Who said electrons are found in electron clouds? Question Answer Atoms contain mostly empty space. Rutherford Electrons travel in certain paths, or en Bohr Electrons can jump from a path in one le Bohr Electrons are found in electron clouds, Schrodinger and Heisenberg
What did Niels Bohr say about electrons?
Niels Bohr He brought up the idea of Electron shells, which was later proved wrong. He thought that electrons jumped from level to level, and they travel in definite paths. Secondly, who proposed that electrons travel in unpredictable paths around the nucleus?
Who said electrons are most likely to be in orbitals?
It consisted of a dense nucleus surrounded by a cloud of electrons at various levels in orbitals. Schrödinger and Werner Heisenburg (1901-1976) mathematically determined regions in which electrons would be most likely found. Also to know, who said electrons move in empty space in the atom?