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Raoult's Law

Thomson model...

Question

Thomson model proposed which of the following:

A

An atom consists of a positively charged cloud with negative charges embedded in it.

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B

An atom consists of a negatively charged cloud with positive charges embedded in it.

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C

An atom is a cloud of positive and negative charges

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D

It did not discuss the distribution of charges in the atom

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Solution

The correct option is A
An atom consists of a positively charged cloud with negative charges embedded in it.

Thomson proposed the plum pudding model for the structure of the atom. According to this model, an atom consists of a positively charged cloud with negative charges embedded in it, like plums in a pudding.

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Q. According to J.J.Thomson's atomic model, where are the negative charges of an atom embedded in?

According to J.J Thomson, an atom is a positively charged sphere. Which sub-atomic particles is embedded in it?

The clouds consists of charged particles of water dispersed in air. Some of them are positively charged, others are negatively charged. When positively charged clouds come closer, they cause lightening and thundering whereas when positive and negative charged colloids come closer, they cause heavy rain by aggregation of minute particles. It is possible to cause artificial rain by throwing electrified sand or silver iodide from an aeroplane and thus, coagulation the mist hanging in air.

Clouds are colloidol solution of :

Q. Fill in the blanks.
(a) An atom consists of _______________, ____________ and _____________.
(b) _____________ are negatively charged particles, while ____________ are positively charged and ____________are ____________.
(c) The ____________ at the center of the atom has ___________ and ____________.
(d) The paths of the negatively charged particles in an atom are called ______________.
(e) Each _____________ is a unit of negative electricity.
(f) In an atom, the _____________ and ____________ are equal in number.
(g) The ___________ and ____________ together make up most of the mass of an atom.
(h) The _____________ of an ____________ is negligible.
(i) The atom as a whole is electrically ______________.
(j) An atom with a shortage or surplus of _____________ is called an ____________.

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