Question

State following four properties each of $\alpha ,\beta \text{and}\gamma$ radiations :
(a) nature,
(b) charge,
(c) mass, and
(d) effect of electric field.

Answer 1

Property	$\alpha -\text{particles}$	$\beta -\text{particles}$	$\gamma -\text{particles}$
Nature	Stream of positively charged particles i.e, helium nucleus	Stream of negatively charged particles	Highly energetic electromagnetic radiation
Charge	Positive charge (two times that of a proton) $=+3.2\times {10}^{-19}C(or+2e)$	Negative charge $=-1.6\times {10}^{-19}C(or-e)$	No charge
Mass	Four times the mass of proton $=6.68\times {10}^{-27}kg$	Mass of electron$=9.1\times {10}^{-31}kg$	No mass
Effect of electric field	Less deflected	More deflected than alpha particles	Unaffected