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CHEMISTRY FROM 2

Chapter 2: THE ATOM

Masses of subatomic particles

These subatomic particles have very small masses. The mass of either proton or neutron is the same as that of the hydrogen atom, meaning that the mass of a proton or neutron is 1 as compared to that of an hydrogen atom while the mass of an electron is 1/1840.

Particles

Mass

Proton

1

Neutron

1

Electron

1/1840

 

par Claude Foumtum