Grade 12Physical Chemistry
Calculate the energy associated with the first orbit of He+ . What is the radius of this orbit?
1 Answer
Gitto Thomas Kuruthukulangarakoola
Energy of orbit n, En = RH (Z2 / n2 ) and radius, rn = ao n2 / ZRH = 2.18 * 10-18 J; Z = 2; n = 1; ao = 52.9 pmEn = 2.18 * 10-18 J (4/1) = 8.72 * 10-18 Jrn = 52.9 pm * 1 / 2 = 26.45 pm
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