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Who made contributions to the atomic theory?
Leukippus, Democritus, Dalton, Bohr, Rutherford, Thomson and many others.
Who are the discovery of these 3 subatomic particles?
Particles in the atom: Neutron: James Chadwick, 1932 Electron: J. J. Thomson, 1897 Proton: Ernest Rutherford, 1919
Which was discovered first proton or electron in which year and by whom?
the electron was first discovered in 1897 by Joseph john Thomson and the proton was discovered in 1913 by ernest Rutherford
What did Ernest Rutherford's experiment prove?
We should never say that an experiment has proven something. The Rutherford gold foil experiment led to the hypothesis that an atom's positive charge is concentrated in an incredibly small space at the atom's center.
Where is the Thomson-Mcduffie County Library in Thomson located?
The address of the Thomson-Mcduffie County Library is: 338 Main Street, Thomson, 30824 2600
How have scientists like JJ Thomson Ernest Rutherford and Niels Bohr helped to change and improve your scientific understanding of the atom?
Scientists like JJ Thomson, Ernest Rutherford, and Niels Bohr were pioneers in advancing our understanding of the atom. Thomson discovered the electron and proposed the plum pudding model, Rutherford conducted the gold foil experiment leading to the discovery of the atomic nucleus, and Bohr introduced the idea of quantized electron energy levels and the planetary model of the atom. Together, their contributions laid the foundation for modern atomic theory and our understanding of the structure of atoms.
How did atom research conducted by john Dalton sir Joseph john Thomson sir ernest Rutherford and niels bohr impact scientific thought throughout the history of science?
The atom research conducted by John Dalton, J.J. Thomson, Ernest Rutherford, and Niels Bohr contributed significantly to our understanding of the structure of the atom. Dalton proposed the atomic theory, Thomson discovered the electron, Rutherford formulated the nuclear model of the atom, and Bohr developed the planetary model of the atom. These discoveries paved the way for modern atomic theory and revolutionized our understanding of matter and chemical reactions.
What did ernest Rutherford and jj Thomson do together?
Ernest Rutherford and J.J. Thomson worked together on research related to the structure of the atom. Thomson discovered the electron and proposed the plum pudding model of the atom, while Rutherford conducted the famous gold foil experiment that led to the discovery of the atomic nucleus. Their work laid the foundation for modern atomic theory.
Who said There is a small dense nucleus?
Ernest Rutherford is the physicist who discovered that atoms have a small dense nucleus at their center. This groundbreaking finding revolutionized our understanding of atomic structure and laid the foundation for modern nuclear physics.
How did Rutherford's theory change Thomson's theory?
Rutherford's theory significantly altered Thomson's earlier model of the atom by introducing the concept of a dense, positively charged nucleus at the center, surrounded by orbiting electrons. While Thomson's "plum pudding" model suggested that electrons were scattered within a diffuse cloud of positive charge, Rutherford's gold foil experiment demonstrated that most of an atom's mass and positive charge is concentrated in a small nucleus. This shift paved the way for the modern understanding of atomic structure, emphasizing the nucleus's role and leading to the planetary model of the atom.
How did the discovery by Rutherford change Thomson's theory?
Rutherford's discovery of the nucleus in an atom challenged Thomson's "plum pudding" model, which suggested that the positive charge and electrons were dispersed evenly throughout the atom. Rutherford's experiment showed that the positive charge was concentrated in a small, dense nucleus, with electrons orbiting around it. This led to a new understanding of the atom's structure and the development of the nuclear model.
What scientific inquiry skill was Rutherford using in selecting Thomson's model for investigation?
Rutherford was using the scientific inquiry skill of hypothesis testing when selecting Thomson's model for investigation. He proposed an alternative model to test and refine the existing understanding of the structure of the atom, setting up experiments to gather evidence that would support or refute Thomson's model.
Which 5 guys created the atom?
John Dalton, J.J. Thomson, Ernest Rutherford, Niels Bohr, and Erwin Schrödinger were all instrumental in the development of our understanding of the atom. Each of them made significant contributions to the atomic theory and the structure of the atom.
How did Rutherford's idea differ from Thomson's idea?
According to Thomson's atomic theory, the mass of an atom was special evenly throughout its volume. Errest Rutherford's experiment proved this wrong.
Was neils bohr jj Thomson's student?
No, Niels Bohr was not J.J. Thomson's student. Niels Bohr was a student of Ernest Rutherford, who was a colleague of J.J. Thomson. Bohr developed his own atomic model, known as the Bohr model, which built upon the work of Thomson and Rutherford.
How did Ernest Rutherford discovery change JJ Thomson's theory?
Ernest Rutherford's discovery of the atomic nucleus through his gold foil experiment fundamentally changed J.J. Thomson's plum pudding model, which posited that atoms were composed of a diffuse cloud of positive charge with negatively charged electrons embedded within it. Rutherford's findings revealed that atoms consist of a dense, positively charged nucleus surrounded by orbiting electrons, suggesting that most of the atom's volume is empty space. This led to the development of the nuclear model of the atom, significantly altering the understanding of atomic structure. Ultimately, Rutherford's work laid the groundwork for modern atomic theory, moving beyond Thomson's initial concept.
Who discovered that atoms contain subatomic particles?
J.J. Thomson discovered the first subatomic particle, the electron, in the late 19th century through his experiments with cathode rays. This discovery led to the understanding that atoms contain subatomic particles.
