Question

on the basis of fazan's rule explain which is more ionic : LiCl or CsCl

Answer 1

I think LiCL is more ionic than CsCL because ionic characters decreases down the group...

Answer 2

Carbon-14, the radioactive isotope of carbon used in carbon dating has a half-life of 5730 years, so it decays too fast. It can only be used to date fossils younger than about 75,000 years. Potassium-40 on the other hand has a half like of 1.25 billion years and is common in rocks and minerals.