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Why is the total energy of a many-electron atom not equivalent to the sum of the orbital energies for every electron?
how to report phase change
The first ionization potentials for Na, K, and Rb are 5.138, 4.341, and 4.166 eV, respectively. Assume that the energy level of the outer electron can be represented by a hydrogenl
uses of potassium oxalato aluminate
How to synthesize xylene? How many methods(ways) to synthesize xylene?
An element has electronic configuration 2, 8, 18, 1. If its atomic weight is 63, then how many neutrons will be present in its nucleus: (1) 30 (2) 32 (3) 34
Q. Illustrate Born-Haber cycle? Boron is always covalent and does not form,B 3+ ions, because' the energy required to remove three electrons is very high. Many simple compo
How can you classify matter in a easy to remember way?
Attacking Reagents - Organic chemistry The fission of the substrate molecule to make centres of high or low electron density is affected by attacking reagents. Most of the atta
classes of azo dyes\
What is a salt bridge? Salt bridge is a device used to link two electrodes on electrochemical cell. It maintains electrical neutrality and internal continuity. It is shown by
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