Question

Which of the following statements is most suitable as the postulates of Thomson’s model of an atom?

• A. An atom consists of a positively charged sphere and electrons are embedded in it
• B. The negative and positive charges are equal in magnitude
• C. An atom consists of a positively charged sphere and electrons are embedded in it, the posivite and negative charges are equal in magnitude.
• D. An atom consists of a negatively charged sphere and neutrons are embedded in it

Answer 1

The correct option is C

An atom consists of a positively charged sphere and electrons are embedded in it, the posivite and negative charges are equal in magnitude.

Thomson proposed that:

1) An atom consists of a positively charged sphere and the electrons are embedded in it.

2) The negative and positive charges are equal in magnitude.

From the above two, we can say that the atom as a whole is electrically neutral.