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Standard X

Physics

Nuclear Fusion

What is the m...

Question

What is the mass of an alpha particle?

1 a.m.u.

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2 a.m.u.

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4 a.m.u.

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It has no mass

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Solution

The correct option is C
4 a.m.u.

Since an alpha particle is a doubly charged helium atom, it has the same mass as that of a doubly charged helium atom which is $4.0015$ a.m.u. This corresponds to $6.642 \times 10^{- 24} g$

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Similar questions

Q. An alpha particle

(^{4} H e)

has a mass

4.00300 a m u

. A proton has a mass

1.00783

amu and a neutron has a mass

1.00867 a m u

respectively. The binding energy of alpha estimated from these data is closest to:

Q. The binding energy of an

α

-particle is
(Given that mass of proton

=

1.0073

amu, mass of neutron

=

1.0087

amu, and mass of

α

-particle

=

4.0015

amu)

Q. What is meant by binding energy? If the masses of proton, neutron and alpha

(α)

particles are

1.00728 a m u, 1.00867 a m u

and

4.00150 a m u

respectively, then find the binding energy per nucleon of alpha particle.

[1 a m u = 931 M e V]

Q. Find the binding energy of an

α -

particle from the following data.
Mass of the helium nucleus

= 4.001265 a m u

Mass of proton

= 1.007277 a m u

Mass of neutron

= 1.00866 a m u

(take

1 a m u = 931.4813 M e V)

Q. The masses of

α

-particle, proton and neutron are

4.00150

amu,

1.00728

amu and

1.00867

amu respectively. Binding Energy per nucleon of

α

-particle is :

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What is the mass of an alpha particle?

The correct option is C 4 a.m.u. Since an alpha particle is a doubly charged helium atom, it has the same mass as that of a doubly charged helium atom which is 4.0015 a.m.u. This corresponds to 6.642×10−24 g

The correct option is C
4 a.m.u.

Since an alpha particle is a doubly charged helium atom, it has the same mass as that of a doubly charged helium atom which is $4.0015$ a.m.u. This corresponds to $6.642 \times 10^{- 24} g$