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Grade 11Physical Chemistry

Correct order of radius of 1st orbit of H,He,Li,Be is

Profile image of Gaurav
8 Years agoGrade 11
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4 Answers

Profile image of Gopal
8 Years ago
For single electron species , i.e. Hydrogen like species atomic radius of orbit ris given as
r=0.529\frac{n^{2}}{Z} A^{0}
Show radius of the orbit is inversly proportional to atomic number Z.
Therefore correct order is
Be+3+2+1
Profile image of Gopal
8 Years ago
 
For single electron species , i.e. Hydrogen like species atomic radius of orbit ris given as
r=0.529\frac{n^{2}}{Z} A^{0}
Show radius of the orbit is inversly proportional to atomic number Z.
Therefore correct order is
 Be^{+3}<Li^{+2}<He^{+}<H
Profile image of Vartika
8 Years ago
BE- Li -He-HSbse kam Be ki redii hoti h just because periodic table me left to right Jane pr atom ka size small hota jata h atomic number increase hone ke saath saath nucleus me proton or nuclear charge ki value increase hoti h or e– outer shell me bhaw jate h
Profile image of Anjali kumari
8 Years ago
The approved answer is Be, Li ,He, H.What can I write to fulfill 100 characters. Fico difficult co gov zu fci pickup bv