Alpha particles are ... times heavier (approx | vedclass

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(B) An $\alpha$-particle is a helium nucleus,which consists of $2$ protons and $2$ neutrons,giving it a mass number of $4$. Since the mass of a neutro

Vedclass · Accepted Answer

$4$

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(B) An $\alpha$-particle is a helium nucleus,which consists of $2$ protons and $2$ neutrons,giving it a mass number of $4$. Since the mass of a neutron is approximately $1 \ amu$ and the mass of an $\alpha$-particle is approximately $4 \ amu$,the $\alpha$-particle is $4$ times heavier than a neutron. Therefore,the correct option is $(B)$.

Alpha particles are $...$ times heavier (approximately) than neutrons.

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