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Noble Gases-Uses and noble gases properties|chemistry funda
Noble Gases: Helium(He), Neon(Ne),Argon(Ar),Krypton (kr), Xenon (Xe) and Radon (Rn) are Noble Gases. They also called as Rare gases. They are members of group VIII A or zero group.The noble gases are present in atmosphere in small amount…
Read More »Borax, Properties and Borax Uses|Chemistry funda
Borax: Borax is the sodium salt of tetraboric acid. It is also called Tincal. Its chemical name is sodium tetraborate decaHydrate. It is found in Dry lake area of tibet and california. The common name of borax is…
Read More »Preparation of Sodium by Down’s cell and Nelson cell|chemistry funda
Preparation of Sodium: We know that sodium (Preparation of sodium)is a chemical element and have symbol NA and atomic Number 11. Its belong to group Number 1 because it has a single electron in outermost shell. It can…
Read More »What is Periodic table laws and features of periodic table:
Definition of periodic table: The representation of chemical elements by atomic number,electronic configuration and chemical properties is called periodic table Dobereiner” Triads A German chemist dobereiner observed relationship between atomic masses of several group of three elements called…
Read More »What is matter,state of matter and how matter can be classified
Matter Anything that has mass and occupy space is called matter. HOW MATTER is CLASSIFIED ? All matter can be classified as either a mixture or a pure substance. Mixtures can be homogeneous or heterogeneous. Pure substances…
Read More »What is organic chemistry and difference between organic and inorganic compound
Organic chemistry Old definition: The branch of chemistry which deals with the study of compounds of carbon however the oxide of carbon,carbon mono oxide,carbon dioxide,carbonate,bicarbonate (CO,CO2,CO3–2,HCO3 ,CN-) etc.Exception to this general definition of organic chemistry. These carbon containing…
Read More »What is Electronegativity and Factors Affecting the Electronegativity
Electronegativity: The relative tendency of a bonded atom in a molecule to attract the shared electron pair towards itself is called electronegativity. In other words, electronegativity is a measure of the ability of an atom in a molecule…
Read More »What is Electron Affinity and the factors effecting the electron affinity
Electron Affinity The energy change that occurs when an electron is added to a neutral atom in the gaseous state to form a negative ion is called electron affinity because it measure the attraction, or affinity, of the…
Read More »What is Chemistry and what are main branches of chemistry
Main Branches of Chemistry CHEMISTRY: The branch of science which we study the composition,structure,properties,and reaction of a matter or substance is called chemistry. Although many would say that there are FIVE main branches of chemistry, namely: Physical, Analytical,…
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