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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
In Bohr's model, atomic radius of the first orbit is γ the radius of the 3rd orbit, is: (1) γ/ 3 (2)γ (3) 3γ (4) 9γ Ans: 9γ
Which is the correct relationship between wavelength and momentum of particles: (1) γ= h/ p (2) Π h/ p (3) p= h/ γ (4) h= p/ γ Ans: γ= h/ p
explain the factors affecting electrolytic conductivity
A boat conformation of cis-1,3-dimethylcyclohexane:
What are the physical propeties of S block ?
Synthesis of DDT and BHC
Preparation of cycloalkane by perkins method
what are the applications of resonance effect
describe the comparative study of physical and chemical properties of p block elements.
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