Calculate the ionisation energy of hydrogen atom as well as energy needed to promote its electron from first energy level to third energy level

Calculate the ionisation energy of hydrogen atom as well as energy nee

1.	Calculate the ionisation energy of hydrogen atom as well as energy needed to promote its electron from first energy level to third energy level
Answer» SOLUTION :Ionizationenthalpy n=5 forionization n`=prop=n_(F )` in initialelectron is inn=5so `n_(i)=5 ` hydrogen z=1 `Delta E = 2.18 xx 10^(18)((1)/(n_(1)^(2) ) - (1)/(n_(f )^(2)))= IE_(5)` `=2.18 xx 10^(18)((1)/(5^(2)) - (1)/(prop^(2)))` `=(2.18 xx 10^(18))/( 25) J` tibalanceionisationenthalpy of `IE_(5) ` and `IE_(1)` : `(1E_(5))/( 1E_(1)) = (8.72 xx 10^(20)J )/( 2.18 xx 10^(18) J) = 4.-036 xx 10^(2)= 0.04` ionizationenthalpyof n=1compareto n=5is0.04 for`n_(5)`LESSAND `n_(1)` moreionizationenthalpy `IE(5): IE (1)` `=0.04 :1` `4:100` `1: 25` So IE (1) isapprox25 timemorethan1E(5 )`