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The expression for Bohr's radius of an atom is: (1) r= n 2 h 2 / 4 Π 2 me 4 z 2 (2) r= n 2 h 2 / 4 Π me 2 z 2 (3) r= n2h2/4 Π me 3
what is the name materyal of use in plate choromatgraphy
Ammonia is a gas for which reliable analytical methods are available to determine concentration in other gases. To measure flow in a 15 inch schedule 40 natural gas pipeline, pure
Q. Describe the Half -Life property of radioactive decay? Ans. The decay of a nucleus is a random event. It is impossible to predict which nucleus will decay and when.
can anyone explain the intermediate compound formation theory in detail .?
During a flame test why is calcium''s flame not persistent, while that of strontium is? Ans) Because it does not have many ions as compared to the Strontium. It is the ions whic
what is ionisation energy
stuck on a chemistry assignment i need a way to include the elctron configuration and chemical properties of copper into a oral that is also a sales pitch.
The maximum number of electrons that can be accommodated in f sub shell is : (1) 2 (2) 8 (3) 32 (4) 14 Ans: 14
Q. Can you explain Texture? Texture indicates the characteristic of a food and would include descriptive parameters like graininess, softness, chewiness, brittleness etc. The t
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