How does Huckle rule help to decide the aromatic character of a compound ?

Which can show aromatic character ?

What is radius ratio ? How does it help to predict the structure of ionic compounds ?

What is radius ratio ? How does it help to predict the structure of ionic compounds ?

What is radius ratio ? How does it help to predict the structure of ionic compounds ?

Assertion : Tropylium caption is aromatic in character . Reason The only property which decides the aromatic character is its planar nature.

How does Hund’s rule help in writing electronic configuration of an atom? Explain with a suitable example.