In what ways Rutherford atomic model is different from Thomson's atomic modal?explain briefly because this is a five mark question
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The Thomson model of atom is called Plum pudding model because it states that the atom looks like a plum pudding. The only known details about the atom at that time were,
Atoms are composed of electrons Electrons are negatively charged particles Atoms are neutrally charged
Since electrons are negatively charged, Thomson suggested that there should be a positive charge in order to neutralize the electrical charge of the atom. The Thomson model of atom explains that electrons are embedded in a positively charged solid material which is spherical in shape. This structure looks like a pudding with plums embedded on it and was named as plum pudding model of atom. This proved the assumption that states an atom is neutrally charged since this model states the negative charges of electrons are neutralized by the positive charge of the solid sphere. Although this model proved that atoms are neutrally charged, it was rejected after the discovery of the nucleus.
According to the Rutherford model of atom, the so-called plum pudding model of Thomson was incorrect. Rutherford model of atom is also called nuclear model because it provides details about the nucleus of an atom.
The famous experiment called “Rutherford gold foil experiment” led to the discovery of the nucleus. In this experiment, alpha particles were bombarded through a gold foil; they were expected to go straight through the gold foil. But instead of straight penetration, alpha particles turned into different directions.
Atoms are composed of electrons Electrons are negatively charged particles Atoms are neutrally charged
Since electrons are negatively charged, Thomson suggested that there should be a positive charge in order to neutralize the electrical charge of the atom. The Thomson model of atom explains that electrons are embedded in a positively charged solid material which is spherical in shape. This structure looks like a pudding with plums embedded on it and was named as plum pudding model of atom. This proved the assumption that states an atom is neutrally charged since this model states the negative charges of electrons are neutralized by the positive charge of the solid sphere. Although this model proved that atoms are neutrally charged, it was rejected after the discovery of the nucleus.
According to the Rutherford model of atom, the so-called plum pudding model of Thomson was incorrect. Rutherford model of atom is also called nuclear model because it provides details about the nucleus of an atom.
The famous experiment called “Rutherford gold foil experiment” led to the discovery of the nucleus. In this experiment, alpha particles were bombarded through a gold foil; they were expected to go straight through the gold foil. But instead of straight penetration, alpha particles turned into different directions.
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According to Thomson’s model, an atom is a positively charged sphere in which electrons were embedded which neutralise the positive charge so that, the atom as a whole is electrically neutral.
According to Rutherford’s model of atom, the positive charge and mass of the atom are concentrated in the small nucleus in the centre of the atom and negatively charged electrons are distributed (revolving) around the nucleus.
According to Rutherford’s model of atom, the positive charge and mass of the atom are concentrated in the small nucleus in the centre of the atom and negatively charged electrons are distributed (revolving) around the nucleus.
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