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Introduction Beryllium element symbolized as Be and with an atomic number of 4, is a hard, greyish metal that is remarkably light and strong. Known for its unique combination of properties, beryllium plays a critical role in various high-tech applications,…
Evolution of Universe: Big Bang Theory Big Bang is a cosmological theory which explains the origin of our universe. According to this theory, the universe was once compressed into extremely small volume which about 14.2 billion years ago exploded and…
Introduction Lithium is a soft, silvery-white alkali metal with the symbol Li and atomic number 3. Known for being the lightest metal and the least dense solid element, lithium has garnered significant attention due to its extensive applications in batteries,…
Helium: The Element that Powers the Universe Helium is a colourless, odourless, tasteless, non-toxic, inert, monatomic gas that heads the noble gas group in the periodic table. Its atomic number is 2, and it is the second lightest and second…
Hydrogen: The Element of the Future What is Hydrogen? Hydrogen, the simplest and most abundant element in the universe, is a colorless, odorless, and highly flammable gas. It is represented by the symbol H and has an atomic number of…
Human Health and Disease for UPSC aspirants Human health is the state of complete physical, mental, and social well-being. Health increases productivity and ensures longevity. What is Human Health? Ways to Ensure Good Health Why do Diseases Occur? Common Diseases…
Nucleus Chromosomes Nucleotide & Nucleoside Nucleic Acids DNA & RNA Comparison of DNA and RNA S.No. DNA RNA 1. Deoxyribonucleic acid Ribonucleic acid 2. It occurs inside the nucleus of cell and some cell organelles but it plants it is…
A brief note on Nanotechnology Introduction Why is nanoscale so significant? Nanomanufacturing There are two ways to manufacture nanomaterials: A. Top-Down Approach B. Bottom-Up Approach Generations of Nanotechnology Nanotechnology is divided mainly into four generations which also gives a road map for…
Chapter 4: Carbon and Its Compounds Introduction: Two or more elements combine to form a compound. There are two types of compounds: Organic Compounds and Inorganic Compounds. Organic compounds are made up of carbon and hydrogen (generally known as hydrocarbons)…
Class 10 Chapter 6: How do Organisms Reproduce Introduction Do organisms create exact copies of themselves? Different types of Reproduction Asexual Reproduction It is a mode of reproduction involving a single parent. There are different modes of asexual reproduction- Fig.1.…