Question

Give any two differences between the physical properties of sodium and phosphorus

Answer 1

• Sodium has an atomic number of 11 while potassium has an atomic number of 19

• Despite smaller atomic number, sodium is denser than potassium

• Potassium reacts much more violently with water

• While excess of sodium is harmful for us, low levels of potassium have also been found to be associated with certain disorders of lungs and heart.