(A) An $\alpha$-particle is a helium nucleus,denoted as $\alpha = {}_2^4 \text{He}^{2+}$.It consists of $2$ protons and $2$ neutrons,having a total ma

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$2$ protons and $2$ neutrons only

(A) An $\alpha$-particle is a helium nucleus,denoted as $\alpha = {}_2^4 \text{He}^{2+}$.It consists of $2$ protons and $2$ neutrons,having a total mass number of $4$ and an atomic number of $2$.

Class 12 Physics Nuclei Composition of Nucleus, Size of the Nucleus, Nuclear force

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An $\alpha$-particle consists of:

NEET 2019 All NEET

A
$2$ protons and $2$ neutrons only
B
$2$ electrons,$2$ protons and $2$ neutrons
C
$2$ electrons and $4$ protons only
D
$2$ protons only

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Class 12

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Nuclei

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Composition of Nucleus, Size of the Nucleus, Nuclear force

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The surface areas of two nuclei are in the ratio $9: 25$. The mass numbers of the nuclei are in the ratio

EasyAP EAMCET 2024

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The radius of an atomic nucleus of mass number $64$ is $4.8 \text{ fermi}$. Then the mass number of another atomic nucleus of radius $6 \text{ fermi}$ is

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

MediumKVPY 2019

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If the radius of $_{13}^{27}Al$ is $3.6 \ fm$,then the radius of the $_{52}^{125}Te$ nucleus will be ........ $fm$.

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The ratio of the specific charge of an $\alpha$-particle to that of a proton is

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An $\alpha$-particle consists of:

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