1.

What is the ratio of the atomic radius of the 5^th orbit in chlorine atom and 3^rd orbit in Helium atom?(a) 153:50(b) 50:153(c) 153:100(d) 100:153This question was posed to me in exam.Enquiry is from Bohr’s Model for Hydrogen Atom in section Structure of Atom of Chemistry – Class 11

Answer»

Correct choice is (b) 50:153

To explain I would SAY: The atomic radius of an ATOM is given by the formula rn = 52.9n^2/Z pm, where rn is the radius of NTH orbit of an atom and Z is the atomic number of that atom. The RATIO of the atomic radius of the 5^th orbit in chlorine atom and 3^rd orbit in Helium atom is 25/17:9/2 = 50:153.



Discussion

No Comment Found

Related InterviewSolutions