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Silicon has 4 electrons in the outermost orbit. In forming the bonds: (1) It gains electrons (2) It loses electrons (3) It shares electrons (4) None of these Ans: I
what are valence electrons? and how do you write them?
why lanthanide series is called lanthanide?
hno3 reactio
A Carnot heat engine gets heat at 800 K and rejects the waste heat to the environment at 300 K. The whole work output of the heat engine is used to drive a Carnot refrigerator that
A copper tube 1 inch in diameter and 2 feet long is filled with steel balls of 1 inch in diameter. The space between the balls is filled with water. The specific gravity of steel i
The frequency of radiation emitted when the electron falls from n= 4 to n=1 in a hydrogen atom will be (Given ionization energy of H = 2.18x 10 -18 J atom-1 and h= 6.625x 10-
Q. Explain about Structural Isomerism? When two molecules have the same atoms but different bonds, they are called structural isomers. Thus, the variation of bond type or multi
GEOCHEMISTRY The chemical processes taking place in the crust are especially important as they have build ores, concentrated mineral deposits that are exploited industrially
What are the theoretical physical properties of esters?
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