The mass of Neutron is 1.67 x 10⁻²⁷ kg. Calculate the number of neutrons in a piece of metal whose net mass is one gram. Ans. (5.99 x 10²³ Neutrons)



Given:


Mass of Neutron = m = 1.67 x 10⁻²⁷ kg = 1.67 ｘ 10⁻²⁷ ｘ 10³ g = 1.67 ｘ 10⁻²⁴ g


To Find:

Numbers of Neutrons in one gram  = ?


Solution:

Using the unitary method:

1.67 ｘ 10⁻²⁴ g  = 1 Neutron

1 g = `\frac {1}{1.67 ｘ 10⁻²⁴ }` Neutrons

1 g = 5.988 ｘ 10²³ Neutrons  ------------------Ans.


Hence, One gram piece of metal will contain 5.988 ｘ 10²³ Neutrons.

Similar Questions:

Mass of Proton is 1.67 x 10⁻²⁷ kg. How many protons would make one gram. (5.99 x 10²³ Protons)


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