ICSE Class 9 Answered

Why hydrogen is used for comparing proton & electron

Asked by chaubeshyamji | 22 Nov, 2014, 08:24: PM

Expert Answer

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However, please refer to the probable answer of the query which you have posted-

Hydrogen is the atom of lowest mass that is, 1u.
The mass of a proton is taken as 1 unit and its charge as +1.
The mass of a proton was calculated as being equal to the mass of an atom of hydrogen, i.e. 1·672 x 10^-24 g. The relative mass of a proton is 1u.
If we compare the mass of a proton with that of an electron, then the mass of a proton is 1840 times that of an electron.
The absolute mass of a proton is 1.6 x 10^-24 gram.

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Answered by Hanisha Vyas | 24 Nov, 2014, 03:21: PM