compare and
contrast alpha, beta and gamma rays
Alpha particle/ray
|
Beta particle/ray
|
Gamma rays
|
They helium nuclei
|
They are streams of electrons
|
They are electromagnetic radiations
|
They are the most ionizing
|
They are more ionizing than gamma but
less ionizing than alpha
|
They are least ionisingthey are the
most penetrating
|
They are less penetrating than both
gamma and beta
|
They are more penetrating than alpha
but less penetrating than gamma
|
they are the most penetrating, they
can
|
They have the charge of +2e and mass
of approximately 4amu
|
They have the mass of electrons and also the charge of
electrons
|
They are massless
|
They cannot penetrate human skin
|
They can penetrate human skin
|
They are they most penetrating ,
extremely difficult to stop
|
They are slowest, their speed is in
the order of 1.6 x 103m/s
|
Faster than alpha but slower than
gamma rays, their speed ranges from 0 to 0.9995 C
|
They are very fast moving at a speed
of light, C =300,000,000 mls
|
They can be stop by paper, clothes,
skin etc
|
They can penetrate thin lead and thick
concrete.
|
|
They travel few centimeters in air
|
They can travel several centimeter in
air
|
They can travel hundredths of
centimeters in air
|
Deflected to negative pole in both
magnetic and electrostatic field
|
Deflected to positive pole in both magnetic and electrostatic
field
|
Deflected to any direction in both
magnetic and electrostatic
field
|
It is positively charged
|
It is negatively charged
|
It is electrically neutral
|
They cause fluorescence in materials
|
They cause fluorescence in materials
|
They do not cause fluorescence in
materials
|
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