Which statement about Rutherford model of atom is not true?

English

Gujarati

Hindi

12.Atoms

medium

Which statement about the Rutherford model of the atom is not true?

A

There is a positively charged centre in an atom called the nucleus

B

Nearly all the mass of an atom resides in the nucleus

C

Size of the nucleus is comparable to the atom

D

Electrons occupy the space surrounding the nucleus

(KVPY-2012)

Solution

(c)

In Rutherford model, positive charge acquires a very small place at centre of atom in nucleus.

So, option $(c)$ is incorrect.

Standard 12

Physics

Share

Similar Questions

Difference between nth and $(n +1)^{th}$ Bohr’s radius of $‘H’$ atom is equal to it’s $(n-1)^{th}$ Bohr’s radius. the value of $n$ is:

normal

An alpha particle colliding with one of the electrons in a gold atom loses

easy

The wavelength of ${K_\alpha }$ line for an element of atomic number $29$ is $\lambda $ . Then the wavelength of ${K_\alpha }$ line for an element of atomic no $15$ is (Take mosley‘s constant $b = 1$ for both elements)

normal

In Bohr model of hydrogen atom, the force on the electron depends on the principle quantum number as

normal

An electron makes a transition from orbit $n = 4$ to the orbit $n = 2$ of tha hydrogen atom. The wave number of the emitted radiations ($R =$ Rydberg's constant) will be

normal