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Question

The increasing order (lowest first) for the values of e/m (charge/mass) for electron (e), proton (p),neutron (n) and alpha particle $$(\alpha)$$ is:


A
e, p, n, α
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B
n, p, e, α
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C
n, p, α, e
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D
n, α, p, e
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Solution

The correct option is D n, $$\alpha$$, p, e
Charge/mass for $$n=0, \alpha=\dfrac {2}{4}, p=\dfrac {1}{1}, e=\dfrac {1}{1/1837}$$
So, order is n, $$\alpha$$, p, e.

Chemistry

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