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An element have atomic weight 40 and it's electronic configuration is 1s 2 , 2s 2 , 2p 6 , 3s 2 , 3p 6 . Then its atomic number and number of neutrons will be: (1) 18 and 22
Which of the following electronic configurations is not possible: (1) 1s 2 , 2s 2 (2) 1s 2 , 2s 2 , 2p 6 (3) 3d 10 4s 2 4p 2
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How are ionic bonds and covalent bonds different
Chemical formula of benedict solution is Feso 4 .7H 2 o
why f elememnts kept sepertaly in periodic table
CLARK'S METHOD OR SOAP TITRATION METHOD: This method depends upon the fact that when soluble soap is added to hard water, constituent of hard water. Ca, Mg and other heavy metals
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SILENT FEATURES OF ELECTROCHEMICAL SERIES.
In neutral atom, which particles are equivalent: (1) P + e + (2 ) e - e + (3) e -, P + (
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