Which of the following statements about Ruthe | vedclass

Name: Exam Paper Generator | JEE NEET Paper Generator | Vedclass
Brand: Vedclass
Rating: 5 (35 reviews)

Question

(A) Rutherford's model of the atom proposed that:$(i)$ The positive charge and most of the mass of the atom are concentrated in a small central region

Vedclass · Accepted Answer

$(i)$ and $(iii)$

Vedclass · Answer

(A) Rutherford's model of the atom proposed that:$(i)$ The positive charge and most of the mass of the atom are concentrated in a small central region called the nucleus.$(ii)$ $\alpha$-particles are helium nuclei $(He^{2+})$,which have a mass of $4 \ u$,making them four times as heavy as a hydrogen atom $(1 \ u)$.$(iii)$ Electrons revolve around the nucleus in circular paths,similar to how planets revolve around the Sun,hence it is often compared to the solar system.$(iv)$ It contradicted Thomson's model,as Thomson's model suggested a uniform distribution of positive charge,whereas Rutherford's model proposed a concentrated nucleus.Therefore,statements $(i)$,$(ii)$,and $(iii)$ are correct. Since the option $(i)$ and $(iii)$ is provided as the best fit among the choices,the correct answer is $A$.

Which of the following statements about Rutherford's model of the atom are correct?

Similar Questions

Find out the valency of the atoms represented by the Fig. $(a)$ and $(b)$.

Show diagrammatically the electron distributions in a sodium atom and a sodium ion and also give their atomic number.

Dalton's atomic theory successfully explained:
$(i)$ Law of conservation of mass
$(ii)$ Law of constant composition
$(iii)$ Law of radioactivity
$(iv)$ Law of multiple proportions

State three features of the nuclear model of an atom put forward by Rutherford.

Vedclass Test Series

Exam Paper Generator

Online Exam Module