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¶ Explain Thomson's model of an atoms? with its postulate.

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Answer 1

$\huge \sf{Question :-}$

Explain Thomson's model of an atoms? with its postulate.

$\huge \sf{Answer :-}$

❥The description of Thomson’s atomic model is one of the many scientific models of the atom.

❥It was proposed by J.J Thomson in the year 1904 just after the discovery of electrons.

❥However, at that time the atomic nucleus was yet to be discovered.

❥ So, he proposed a model on the basis of known properties available at that time.

❥The known properties are:

$\star$ Atoms are neutrally charged

$\star$Negatively charged particles called electrons are present in an atom.

$\huge\tt\red {Postulates}$

Postulate 1: An atom consists of a positively charged sphere with electrons embedded in it

Postulate 2: An atom as a whole is electrically neutral because the negative and positive charges are equal in magnitude

❥Thomson atomic model is compared to watermelon. Where he considered:

$\star$ Watermelon seeds as negatively charged particles

$\star$ The red part of the watermelon as positively charged

Answer 2

Answer:

1. J.J. Thomson's experiments with cathode ray tubes showed that all atoms contain tiny negatively charged subatomic particles or electrons. Thomson proposed the plum pudding model of the atom, which had negatively-charged electrons embedded within a positively-charged "soup."
2. According to the postulates of Thomson's atomic model, an atom resembles a sphere of positive charge with electrons (negatively charged particles) present inside the sphere. The positive and negative charge is equal in magnitude and therefore an atom has no charge as a whole and is electrically neutral.

Explanation:

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