In the Bohr's model, for unielectronic species following symbols are used: Prz Radius of nth orbit with atomic number"z" Un Potential energy of electron in nih orbit with atomic number *z Kez - Kinetic energy of electron in norbit with atomic number "z" Vnz ---- Velocity of electron in nth orbit with atomic number "z" The Time period of revolution of electron in norbit with atomic number "Z" Calculate z in all cases. () U2: K12=-8:1 (0) 12: 12,1 = 1:8 () V:.: 13,1 = 9:1 (iv) T12: T2z = 9:32 If ab,c and d represent the value of 'Z in parts (). (i), (i) & (iv) respectively and ab.c.d numbers only from 0 to 9. Determine the value of [1.25(a+b+c+d)) Snace for Rough Work

In the Bohr's model , for unielectronic species following symbols are used r_(n,z)to Radius of n^"th" orbit with atomic number "z" U_(n,z)to Potential energy of electron in n^"th" orbit with atomic number "z" K_(n,z)to Kinetic energy of electron in n^"th" orbit with atomic number "z" V_(n,z)to Velocity of electon in n^"th" orbit with atomic number "z" T_(n,z)to Time period of revolution of electon in n^"th" orbit with atomic number "z" Calculate z in all in cases. (i) U_(1,2):K_(1,z)=-8:9 (ii) r_(1,z):r_(2,1) =1:12 (iii) v_(1,z):v_(3,1)=15:1 (iv) T_(1,2):T_(2,z)=9:32 Report your answer as (2r-p-q-s) where p,q,r and s represents the value of "z" in parts (i),(ii),(iii),(iv).

The energy of an electron in nth orbit of hydrogen atom is

In Bohr's model, r_(n,z)= radius of n^(th) orbit with atomic number Z u_(n,z) =P.E of electron in n^(th) orbit with atomic number Z K_(n,z) = K.E of electron in n^(th) orbit with atomic number Z V_(n,z) = velocity of electron in n^(th) orbit with atomic number Z T_(n,z)= time period of revolution in n^(th) orbit with atomic number Z {:(Column I,Column II),((A)U_(1.2),K_(1.1),(p)1:8),((B)r_(2.1),r_(1.2),(q)-8:1),((C)V_(1.3),V_(3.1),(r)9:1),((D)T_(1.2),T_(2.2),(s)8:1):}

Radius (r_(n)) of electron in nth orbit versus atomic number (Z) graph is

Radius (r_(n)) of electron in nth orbit versus atomic number (Z) graph is