Answer to Question #259704 in General Chemistry for Vishnu cr

Question

Calculate the radius of the second and third orbits in he+ion. Also calculate the energy of the electron in the second and third orbits of he+ion. Hint:use bohr atom model. Z value for he+ion =2.

Answer 1

Radius of helium like species (one electron atoms) is given by:

r=0.529×2

for H, r=0.529

for He+

n=2 and Z=2

r=0.529×2

Answer is 2.