Question

The increasing order (lowest first) for the values of e/m (charge/mass) for

• A. $e,p,n,\alpha$
• B. $n,p,e,\alpha$
• C. $n,p,\alpha ,e$
• D. $n,\alpha ,p,e$

Answer 1

The correct option is D

$n,\alpha ,p,e$

$\frac{e}{m}$ foproduct trackeR

(i) neutron = $\frac{0}{1}=0$

(ii) $\alpha$ - Particle $=\frac{2}{4}=0.5$

(iii) Proton $=\frac{1}{1}=1$

(iv) Electron $=\frac{1}{\frac{1}{1837}}=1837$