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An element has the electronic configuration 1s 2 , 2s 2, 2p 6 , 3s 2 , 3p 2 . Its valency electrons are: (1) 6 (2) 2 (3) 3 (4)4 Ans: 4
what are valence electrons? and how do you write them?
Which set of quantum numbers for an electron of an atom is not possible: (1) n=1 l=0, m=-0, s= +1/2 (2) n=1, l=1, m=-1, s= +1/2 (3) n=1, l=0, m=0, s= -1/2 (4) n=
Ask quesymmetry and clculation of charactersstion #Minimum 100 words accepted#
ionic equation for potassium dichromate and potassium manganate
give me two examples of compounds formed by s - blockmetals
maximum no of unpaired electrons a)mn2+ b)ti3+ c)v3+ d)fe2+
wht is the difference between molar mass & molecular mass?
In an element going away from nucleus, the energy of particle : (1) Decreases (2) Not changing (3) Increases (4) None of these Ans: Increases
why phosphene acts as ligand?
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