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Q. Explain emanation spectrum of an atom? The emanation spectrum of an atom indicates that the energy it emits is quantized meaning that only certain quantities of energy can b
(i) How would you account for the following: (a) The transition elements exhibit high enthalpies of atomization. (b) The 4d and 5d series of the transition metals have more
The hydride ions H- are isoelectronic with: (1) Li (2) He + (3) He (4) Be Ans: He
Orthoboric acid H 3 BO 3 commonly known as boricacid and Meta boric acid HB0 3 , are two well-known and important oxoacids of boron. On a large scale, H 3 BO 3 is prepared by the
describe the construction and the working of the calomel electrode
Which of the following expressions gives the de-Broglie relationship: (1) h= γ/ mv (2) γ= h/mv (3) γ=m/ mv
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)
what is p block element
what is woodwards rule
Correct statement is: (1) K=4s 1 , Cr= 3d 4 4s 2 , Cu= 3d 10 4s 2 (2) K=4s 2, Cr= 3d 4 4s 2 , Cu= 3d 10 4s 2 (3) K=4s 2 Cr= 3d 5 4s 1 , Cu= 3d 10
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