Explain Pauling method to determine ionic radii.

Best method to determine paternity is

Ionic radii are

Explain the experiment to determine the resistivity of the material of the wire using meter bridge.

Best method to determine the age of tree is to

Explain van Arkel method for refining Zirconium and Titanium.

Explain the mechanism of sex determination in insects like Drosophila and grasshopper.

LiI occurs as cubical closed packing. If the edge lenth of unit cell is 624 pm, determine the ionic radii of Li^(o+) and I^(Θ) inos.