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Why lithium and beryllium markedly differ from other members of their respective groups?
The most important classification of elements is that of non-metallic versus metallic. Metallic elements form solids that are good conductors of electricity, and where bonding is n
Physical properties of Phenol (a) Phenol is a colorless crystalline, deliquescent solid. It attains pink colour on exposure to air and light. (b) Phenol is capable of formin
How do you account for the following: (a) All scandium salts are white. (At. No. of Sc = 21) (b) The first ionization energies of the 5d transition elements are higher than
100 ch3-ch2-choh-ch2-ch2cl
which is the main postulate of bohr''s model of atom
A 64-g sample of germanium-66 is left undisturbed for 12.5 hours. At the end of that period, only 2.0 g remain. What is the half-life of this material? 4. With a half-life of 28.8
What are laws of crystallography? How does it help in study of crystal structure
why beryllium show simmillarity with Alumminium
effect on human body.
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