Atoms

Given below are two statements: In the light of the above statements, choose the most appropriate from the options given below

1. Both Statement I and Statement II are true
2. Statement I is true but Statement II is false
3. Statement I is false but Statement II is true
4. Both statement I and statement II are false

Answer

(2) Statement I is true but Statement II is false

Solution

Statement I: a tiny, massive, positively charged nucleus with electrons revolving round it is Rutherford's nuclear model ⇒ Statement I is true.

Statement II: a sphere of positive charge with electrons embedded in it is Thomson's (plum-pudding) model

∵ Rutherford's α-scattering experiment disproved Thomson's model, it is not a special case of Rutherford's model ⇒ Statement II is false.

Answer: (2)