Question

Write the names and symbols of the two most reactive metals. Explain by drawing electronic structure how any one of the two metals react with a halogen. State any four physical properties of the compound formed.

Answer 1

caesium and Francim are the two mos reactive metals

It reacts just like as it reacts with chlorine to form CsCl

Properties: 
They are conductors of electricity in molten state. 
They are soluble in water
They are in crystalline form
They have high melting n boiling points