The increasing order of the value of e/m (charge/mass) of an electron (e), proton (p), neutron (n) and (𝝰) particle -

Foundation

Chemistry Foundation

Cathode Ray Experiment

Question

n,p, α, e

n,α, p, e

e,p,n,α

n,p,e,α

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where, e is charge
and m is relative mass