It's J.J. Thomson He had the plum pudding experiment The answer is Thomson
Ernest Rutherford concluded that the plum pudding model, proposed by J.J. Thomson, was incorrect after conducting his gold foil experiment. He found that most alpha particles passed through the foil, but some were deflected at large angles, indicating that an atom is mostly empty space with a dense, positively charged nucleus at its center. This led to the development of the nuclear model of the atom, which replaced the plum pudding model.
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.
The plum pudding model was proposed by J.J. Thomson in 1904, before the discovery of the atomic nucleus. It suggested that atoms were composed of positively charged substance with electrons embedded within it like plums in a pudding. It was later replaced by the Rutherford model when the nucleus was discovered.
The Thomson model, also known as the "plum pudding model," concluded that atoms are composed of a uniform positive charge with negatively charged electrons embedded within it, resembling a pudding with plums. This model suggested that the positive charge was spread throughout the atom, counterbalancing the negative charges of the electrons. However, it was later disproved by Rutherford's gold foil experiment, leading to the development of the nuclear model of the atom.
the atom has a dense, positively charged nucleus at its center. This experiment, conducted by Ernest Rutherford, provided evidence for the nuclear model of the atom and disproved the plum pudding model proposed by J.J. Thomson.
The ''plum pudding atomic model" is from J. J. Thomson, year 1904.
It's J.J. Thomson He had the plum pudding experiment The answer is Thomson
Ernest Rutherford is perhaps best known for his model of the atom. He developed his own model, based upon his research, to replace Thomson's plum-pudding model.
Ernest Rutherford concluded that the plum pudding model, proposed by J.J. Thomson, was incorrect after conducting his gold foil experiment. He found that most alpha particles passed through the foil, but some were deflected at large angles, indicating that an atom is mostly empty space with a dense, positively charged nucleus at its center. This led to the development of the nuclear model of the atom, which replaced the plum pudding model.
J. J. Thomson's ideas are called the "plum pudding model" of the atom, which proposed that atoms are composed of positively charged material with negatively charged electrons embedded within it. This model was later replaced by the more accurate "nuclear model" proposed by Rutherford.
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.
The evidence for JJ Thomson was that the plum pudding model could not predict why atoms absorbed and emitted spectral lines.
The plum pudding model was proposed by J.J. Thomson in 1904, before the discovery of the atomic nucleus. It suggested that atoms were composed of positively charged substance with electrons embedded within it like plums in a pudding. It was later replaced by the Rutherford model when the nucleus was discovered.
Thomson's model was the "Plum Pudding model" because it had electrons "floating" around in the ball, but Rutherford's model shows the electron shells, the nucleus, and the molecular particles: neutron, proton, and electron. Hope this helps!
The Thomson model, also known as the "plum pudding model," concluded that atoms are composed of a uniform positive charge with negatively charged electrons embedded within it, resembling a pudding with plums. This model suggested that the positive charge was spread throughout the atom, counterbalancing the negative charges of the electrons. However, it was later disproved by Rutherford's gold foil experiment, leading to the development of the nuclear model of the atom.
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.