Let us today discuss the 10 properties or characteristics of gamma rays.
1. Gamma, γ-rays are not deflected by electric and magnetic fields. It shows that they do not have any charge.
2. Gamma, γ-rays are electromagnetic waves like X-rays. The wavelength of γ-ray photon is smaller than that of X-rays. Continue reading “10 Properties of gamma rays”
Last time I have discussed the properties of alpha particles. Toady let us discuss the important properties or characteristics of beta (β) particles:
- A beta (β)- particle carries 1.6 x 10-19 C of negative charge, which is the charge on an electron.
- The mass of β-particle is 9.1 x 10-31 kg, which is the same as that of electron.
- The velocity of β-particles ranges from 33% to 99% of the velocity of light. Continue reading “Properties of beta particles”
The alpha, α – particles possess following 10 properties:
1. Alpha, α – particle carries double the positive charge of proton, which is equal to the charge on the helium nucleus.
2. Mass of an alpha, α – particle is roughly four times that of hydrogen atom i.e. it is equal to the mass of the helium nucleus.
The above two properties establish that an alpha, α – particle is equivalent to helium nucleus (or a helium atom which has lost its two orbital electrons i.e. a doubly ionized helium atom). Continue reading “10 properties of alpha particles”
Definition of radioactivity:
The phenomenon of emission of active radiations by an element was termed radioactivity. The element exhibiting this property was called radioactivity element.
Natural radioactivity is a spontaneous and self disruptive activity exhibited by a number of heavy elements occurring in nature. The word spontaneous means by its own or by shear out of nature of the element and self disruptive means that the element disintegrates itself i.e. no external provocation influences the emission. Radioactivity is, therefore, the property by virtue of which a heavy element disintegrates itself without being forced by any external agent to do so. Continue reading “Definition and introduction of radioactivity”