Notes and Study material for Exams
Atomic structure In 1897 J.J. Thomson discovered electron as a constituent of atom. He determined that an electron had a negative charge and had very little mass as compared to that of the atom. Since an atom was found to be electrically neutral it was inferred that some source of positive charge must be present … Read more
Central Government The executive powers of the President are exercised by the Council of Ministers. The Constitution provides that “there shall be a Council of Ministers with the Prime Minister at the head to aid and advise the President in the excercise of his functions”. Here the word “shall” indicates that the President cannot function … Read more
Periodic Table and periodicity Criteria for a new element discovery Assessing if an element has been “discovered” is not a simple task. While reviewing the discovery profiles of the transfermium Elements in the early 90s’, IUPAC and IUPAP set up to establish a series of criteria that must be satisfied for the discovery of an … Read more
Raja Ramanna Center for Atomic Technology (RRCAT) Raja Ramanna Centre for Advanced Technology is a unit of Department of Atomic Energy, Government of India, engaged in R & D in non-nuclear front line research areas of Lasers, Particle Accelerators & related technologies. RRCAT was established by the Department of Atomic Energy, India to expand the … Read more
Atomic Minerals are the most important among non-fossil
Atomic Structure In 1897 J.J. Thomson discovered electron as a constituent of atom. He determined that an electron had a negative charge and had very little mass as compared to that of the atom. Since an atom was found to be electrically neutral it was inferred that some source of positive charge must be present … Read more
Nuclear physics Atoms in nature generally are electrically neutral, as they have equal numbers of protons in the nucleus and orbiting electrons. However, within the nucleus there are other particles called neutrons, which are electrically neutral but have about the same mass as protons. There are two numbers used to characterize a nucleus: Z, the … Read more
Atomic structure In 1897 J.J. Thomson discovered electron as a constituent of atom. He determined that an electron had a negative charge and had very little mass as compared to that of the atom. Since an atom was found to be electrically neutral it was inferred that some source of positive charge must be present … Read more
Bhabha Atomic Research Center (BARC), Mumbai Nuclear research in India began in 1945 with the founding of the Tata Institute of Fundamental Research (TIFR) under the Leadership of Homi Jehangir Bhabha. With the creation in 1954 of the Atomic Energy Establishment at Trombay and the Department of Atomic Energy (DAE), Bhabha and all scientists working … Read more
Central Government The executive powers of the President are exercised by the Council of Ministers. The Constitution provides that “there shall be a Council of Ministers with the Prime Minister at the head to aid and advise the President in the excercise of his functions”. Here the word “shall” indicates that the President cannot function … Read more