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Electrons and nuclei
The familiar planetary model of the atom was proposed by Rutherford in 1912 following experiments by Geiger and Marsden showing that all the mass of an atom was concentrated in a positively charged nucleus. Negatively charged electrons are attracted to the nucleus by the electrostatic force and were considered by Rutherford to 'orbit' it in a same way to the planets round the Sun. It was realized that a proper description of atoms required the quantum theory; although the planetary model remains a useful analogy from the macroscopic world, many of the physical ideas that work for familiar objects must be abandoned or modified at the microscopic atomic level.
Why is geometrical isomers not possible in tetrahedral complexes having two different types of unidentate ligands? Solution) Tetrahedral complexes do not show geometrical isomeri
what is ester
Q. Illustrate Metallic Bonding? Ans. A metal is crystalline because it has a regularly repeating, closely packed structure. In a metal, though, this closely packed structu
Metallurgical Rate Phenomena
Dienes - Hydrocarbon These are hydrocarbon along with two carbon-carbon double bonds. Dienes are of three forms (a) Conjugated dienes: Double bonds are seperated through one
Tests of unsaturation - Bromine - carbon tetrachloride test The compound is liquefying in carbon tetrachloride or chloroform and after that a few drops of 5% bromine solution i
1. A 50.0-L reaction vessel contains 1.00 mol N2, 3.00 mol H 2 , and 0.500 mol NH 3 . Will more ammonia, NH 3 , be formed or will it dissociate when the mixture goes to equilibrium
INTRODUCTION : Alcohol is one of the most important chemicals used in the laboratories. In Biology and Chemistry laboratories it is used almost every day. In this exercise you wil
Q. Explain heat according to kinetic theory of matter? Ans. On an atomic level the definitions of heat and temperature becomes more precise. According to the kinetic theory of
Factors effecting lattice energy of ionic compound
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