involving radioactive materials

Fallouts from Nuclear power generation plants and nuclear bomb..

Radioactive elements are those, which emit invisible radiations of their own accord. This is called radioactivity. Some typical examples of radioactive elements are uranium, thorium, plutonium, polonium etc. Radiations emitted by radioactive elements consist..

Waste products from nuclear power stations etc. are becoming a serious problem. They should be put where the radiation can do no harm. Unfortunately, there is no way of stopping a radioactive nucleus from emitting radiation. Nuclear energy has some advantages over fossil fuel such as coal..

>The first natural series to be discovered is uranium - 238 series. It involves fourteen separate steps, eight of which involve a - emission whereas six involve b - emission. The overall process is written ..

The products of the disintegration of radium atoms. Half-life Radioactive decay is a random process and different radioactive substances decay at different rates. The time taken for the number of particles emitted per unit time to drop to half of its original value is known as t..

There are some physical principles and biological processes that explain the transport of materials across the plant body. They are as follo..

Processes Involved in Transport - There are some physical principles and biological processes that explain the transport of materials across the plant body. They are as follow..

Equilibrium Involving Chemical Systems - In reversible reactions chemical reactions take place in both the forward and backward directions. For example, the reaction between gaseous hydrogen and iodine vapours to give gaseous hydrogen iodide is a reversible reaction and may be expressed a..

Experiment to prove that DNA is Genetic Material Griffith Effect - The fact that DNA is genetic material came from the experiments using bacteria and viruses. The first series of experiments were performed by a British bacteriologist F. Griffith in 1928, using the bacterium Dipl..

Environment is defined as the surroundings in which the organism lives. It has two components - abiotic and biotic. The abiotic environment includes the air (atmosphere), water (hydrosphere) and land (lithosphere). The biotic environment includes the plants, animals and the microbes. The things..