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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.
The discovery and characterization of cathode rays was important in the development of the atomic theory because?
The discovery and characterization of cathode rays led to the identification of electrons as subatomic particles. This discovery was crucial in the development of the atomic theory as it provided evidence for the existence of negatively charged particles within atoms. It also laid the groundwork for the understanding of atomic structure and the concept of the atom as having a positively charged nucleus surrounded by electrons.
Which subatomic particle did James chadwick discover?
James Chadwick discovered the neutron, a subatomic particle that is found in the nucleus of an atom. He made this discovery in 1932, building upon the work of previous scientists in the field of atomic theory.
Who opposed J J Thomsons atomic theory?
Some scientists who opposed J.J. Thomson's atomic theory included William Prout, Ernst Rutherford, and Max Planck. These scientists challenged aspects of Thomson's model, such as the presence of subatomic particles within the atom.
Who are the scientist that historical development of an atom and their contribitions?
Some key scientists in the historical development of the atom include Democritus (concept of "atomos"), John Dalton (atomic theory), J.J. Thomson (discovery of the electron), Ernest Rutherford (discovery of the nucleus), and Niels Bohr (Bohr model of the atom). Each of these scientists made significant contributions to our understanding of the atom and its structure.
What aspect of Dalton's theory was supported by Thomsons findings?
the electron part
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.
Describe the events leading to the discovery of the cell theory.?
because the role of the nucleus in the life of a cell. HOPED IT HELPEd :P
How did Rutherford discovery change Thomson theory?
Ernest Rutherford's discovery of the atomic nucleus in 1911 fundamentally changed J.J. Thomson's earlier "plum pudding" model of the atom, which posited that electrons were distributed uniformly within a positively charged "soup." Rutherford's gold foil experiment revealed that atoms have a small, dense nucleus at their center, surrounded by orbiting electrons, indicating that most of an atom's mass is concentrated in this nucleus. This led to the development of the nuclear model of the atom, which replaced Thomson's model and laid the groundwork for modern atomic theory.
What did Thomsons experiments prove?
Thomson's experiments with cathode rays proved the existence of negatively charged particles, which he called electrons. This discovery provided evidence for the existence of subatomic particles and laid the foundation for the development of the modern atomic theory.
How was Thomsons atomic theory different from Rutherfords atomic theory?
According to Thomson's atomic theory, the mass of an atom was special evenly throughout its volume. Errest Rutherford's experiment proved this wrong.
When was The Discovery of Grounded Theory created?
The Discovery of Grounded Theory was created in 1967.
What aspect of Dalton's theory was not supported by Thomsons findings?
Dalton's theory proposed that atoms are indivisible and have no subatomic particles, which was not supported by Thomson's discovery of the electron. Thomson's findings showed that atoms contain subatomic particles, challenging the notion of indivisible atoms in Dalton's theory.
Did James Chadwick have anything to do with the atomic theory?
Yes, James Chadwick was a British physicist who made significant contributions to the atomic theory. He is best known for his discovery of the neutron, a neutral subatomic particle found in the nucleus of an atom. This discovery helped to advance our understanding of atomic structure and laid the foundation for the development of nuclear physics.
What was Charles Darwin's first discovery please tell me what his first discovery was?
Charles Darwin's first discovery was the theory of life. This is what is commonly referred to as the theory of evolution.
How does Rutherford's theory of atoms helped in the development of the modern atomic theory?
Rutherford's theory proposed that atoms have a dense, positively charged nucleus. This led to the understanding that atoms are mostly empty space with electrons orbiting the nucleus. This laid the foundation for the modern atomic theory, which further developed with the discovery of subatomic particles and the concept of atomic number.
What is the theory that all human cells contain a nucleus?
This theory is false. Red blood cells do not contain a nucleus.
