What are the Characteristics of Electron, Proton and NeutronElectron Electron was discovered by J.J. Thomson. Cathode rays consist of small, negatively charged particles called electrons. The electron is a negatively charged particle found in the atoms …

How can we Separate a Mixture of Two SolidsMany of the materials around us are mixtures. These mixtures have two or more than two substances mixed in them. It may not be possible to use a mixture as such in homes and in industries. We may require only o…

What is the Difference between Physical and Chemical ChangesOn the basis of whether new substances are formed or not we can classify all the changes into two groups.Physical change   A change in which no new substances are formed but physical form of the…

Chemical ReactionsThe processes in which a substance or substances undergo change to produce new substances with new properties are known as chemical reactions. for example, when calcium carbonate is heated, calcium oxide (lime) and carbon dioxide are f…

Explain the Versatile Nature of CarbonBy the eighteenth century scientists tried to explain the difference between the compounds in a broader way. J. J. Berzelius (1807) named the compounds that derived from living organism as organic compounds and thos…

How are soaps and detergents different?Table : Difference between soaps and detergentsSoapsDetergents1. They are sodium or potassium salts of fatty acids1. They are sodium or potassium salts of sulphonic acids.2. They have –COONa group2. They have –SO3Na…

Is Carbon a metal, nonmetal or metalloidThe food you eat, the clothes you wear, the cosmetics you use, the fuels you use to run automobiles are all the compounds of carbon. Carbon was discovered in prehistory and it was known to the ancients. They used t…

What is the Process of MetallurgyThe various steps used in metallurgy are listed below. 1. Enrichment or dressing of the ore 2. Conversion of the enriched ore into the oxide of metal 3. Extraction of metal from the metal oxide 4. Refining or purificati…

How the Iron is madeIRONSymbol FeAtomic number26Electronic Configuration of Iron  : The atomic number of iron is 26. This means that an atom of iron contains 26 electrons in its shells. The electronic configuration of iron is shown below.KLMNFe(26) 28142…

MetallurgyThe process of extracting metals from their ores and refining them for use is known as metallurgy. In other words, the process of obtaining a metal from its ores is called metallurgy of the metal. Common terms used in discussing metallurgical o…