Mass of an α -particle is

English

Gujarati

Hindi

13.Nuclei

easy

The mass of an $\alpha$-particle is

A

Less than the sum of masses of two protons and two neutrons

B

Equal to mass of four protons

C

Equal to mass of four neutrons .

D

Equal to sum of masses of two protons and two neutrons

(AIPMT-1992)

Solution

(a)This is due to mass defect because a part of mass is used in keeping the neutrons and protons bound as $\alpha – $particle.

Standard 12

Physics

Share

Similar Questions

The graph between $log\, R$ and $log\, A$ where $R$ is the nuclear radius and $A$ is the mass number is

medium

Ratio of nuclear radii of ${ }^{135} Cs$ to ${ }^{40} Ca$ is

easy

The nuclear radius is given by $R=r_0 A^{1 / 3}$, where $r_0$ is constant and $A$ is the atomic mass number. Then, the nuclear mass density of $U^{238}$ is

medium

(KVPY-2019)

Write the definition of $Z, A$ and $N$ by stating the structure of a atom.

medium

Mark the correct statement

easy