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The frequency corresponding to transition n= 2 to n =1 in hydrogen atom is: (1) 15.66 x 10 10 Hz (2) 24.66 x 10 14 Hz (3) 30.5
What would be the benefit of knowing where the electrons are at any time?
why lithium and beryllium markedly differ from other members of their respective groups?
For d electrons, the azimuthal quantum number is: (1) 0 (2) 1 (3) 2 (4) 3 Ans: 2
An open test tube at 293 K is filled at the bottom with 24.2 cm of Hg, and 11.2 cm of water is placed above the Hg. Calculate the pressure at the bottom of the test tube if the at
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
I need short questions and mcq related to this topic
The difference in the mass of 100 moles of sodium atoms and sodium ions is 5.48002grams .compute the mass of an electron
Alkyl halide on reaction with dry silver oxide
Although cholrine is electron withdrawing group.yet it is ortho nd para directing in electrophilic aromatic substitution reactants.why? Solution) Halogens are an exception of th
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