Question

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

Answer 1

The most reactive metals belong to group 1. For example, sodium (Na) and potassium (K). These metals react with halogen (e.g. Cl) to form ionic compound (e.g., NaCl, KCl).

For physical properties of ionic compounds.