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excration of group1 from its materials
explain dualnature of electron
why C-12 is taken as standard for atomic mass?
Q. Determine the Number of neutrons? Isotopes of an element can as well be specified by writing the mass number of the isotope following a hyphen after the name of the element.
When an electron jumps from L to K shell: (1) Energy is absorbed (2) Energy is released (3) Energy is sometimes absorbed and sometimes released (4) Energy is nei
When the azimuthal quantum number has a value of l=0 , the shape of the orbital is: (1) Rectangular (2)Spherical (3)Dumbbell (4)Unsymmetrical Ans: Spherical
What are the limitations of second law of thermodynamics?
why is the valence electron 4s2 in the elelment Sc21 and not 3d1?
What is differences by alkali metal and alkaine earth metal which provided colour
Average life of a radioelement is the characteristics property of the element. Explain
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