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An element L has 9 protons and valency 1. Another element M has valency 3 and 5. What is the difference in the number of electrons in L and M ?
Calculate energy of Rb per atom if light of wave length 5.4(10^-8)m produces electron with a speed of 2.450(10^6)
Chemotherapy - chemistry in action The phrase chemotherapy that literally means chemical therapy or chemical treatment was coined in the year 1913 by Paul Ehrlich, the father o
what is the name given to the impure copper obtained through this process
Q. What do you mean by electro-magnetic radiation? In the untimely twentieth century scientists accepted the idea that an atom consisted of a massive positively charged nucleus
If an electron has spin quantum number of +1/2 and a magnetic quantum number of -1 , it cannot be presented in an: (1) d -orbital (2) f -orbital (3) p -orbital (4)s-
what is reverse hyperconjugation? explain with an suitable example....
Simultaneous determination of exact position and momentum of an electron is: (1) Possible (2) Impossible (3) Sometimes possible sometimes impossible (4) None of the ab
A 0.5 m 3 rigid tank is filled with saturated liquid water at 200 o C. A valve at the bottom of the tank is opened, and liquid is withdrawn from the tank. Heat is transferred to t
Q. Evaluate Total Solids in Milk? Total solids determination is a common procedure in many manufacturing plants using dairy products. The total solids in milk can be calculat
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