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PERIODIC TABLE

 Modern Periodic table Modern Periodic Law :  The recent work has established that the fundamental property of an atom is atomic number and not atomic weight. Therefore, atomic number is taken as the basis of the classification of the elements. The modern periodic law was given by Moseley, it may be stated as : ''The properties of elements are periodic functions of their atomic number". Modern periodic table is also called long form of the periodic table or Bohr’s table. In this table, the elements are arranged in order of their increasing atomic number. It consists of 4 blocks (s, p, d and f), 18 groups numbered from 1 to 18 and 7 periods numbered from 1 to 7. Short tricks to learn periodic table  Blocks : The periodic table is divided into four main blocks (s, p, d and f) depending upon the subshell to which the valence electron enters into.  (1) Elements of group 1 and 2 constitute s-Block.   (2) Elements of group 13, 14, 15, 16, 17, 18 constitut...
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Properties of bases

Bases Substances with bitter taste and give a soapy touch are known as bases but many bases have corrosive nature. So bases are defined as "  According to Arrhenius : those substances which give hydroxide or hydroxyl ion (OH - ) in their aqueous solution" are called bases. Properties of Bases The following are the characteristic properties of bases:  1. Taste and Touch  Bases have a bitter taste and their solutions are soapy to touch. 2. Action on indicators . The colours shown by three commonly used indicators in presence of bases are listed below for easy recall.    colours of some common indicators in basic solution  Indicator  colour in basic medium    1. Litmus  Blue    2. Phenolphthalein  Pink    3. Methyl orange  Yellow   3.Conduction of electricity and dissociation of bases...
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The National Eligibility cum Entrance Test (NEET): An In-depth Guide to India's Premier Medical Entrance Examination

 The National Eligibility cum Entrance Test (NEET): An In-depth Guide to India's Premier Medical Entrance Examination Introduction: The National Eligibility cum Entrance Test (NEET) is a highly competitive and widely recognized entrance examination in India for admission into undergraduate medical and dental programs. Introduced in 2013 by the Government of India, NEET has become the sole medical entrance examination for admissions to MBBS (Bachelor of Medicine, Bachelor of Surgery) and BDS (Bachelor of Dental Surgery) programs offered by medical and dental colleges across the country. In this comprehensive guide, we will delve into the details of NEET, including its eligibility criteria, exam pattern, preparation strategies, and significance in the field of medical education in India. Eligibility Criteria for neet : To appear for NEET, candidates must fulfill the eligibility criteria set by the National Testing Agency (NTA), which is the conducting body for the exam. The key eligi...
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