Question

Which of the following is the correct arrangement of the given metals in ascending order of their reactivity? Zinc, Iron, Magnesium, Sodium *

Answer 1

Answer:

Sodium→ Magnesium → Zinc → Iron

1) Sodium

2) Magnesium

3) Zinc

4) Iron

Answer 2

Correct Arrangement of the given metals in ascending order of their reactivity is

Sodium > Magnesium > Zinc > Iron.

EXPLANATION:

• Metals loses electrons and form ions with positive charges.  
• The metal magnesium is situated in period three and has two valence electrons.
• The metal iron (Fe) is situated in period four and has two or three valence electrons.
• The sodium metal is situated in period three and has only one valence electron.
• The metal zinc is located in period four and has two valence electrons.
• In which, Sodium (Na) shows higher metallic nature than Magnesium (Mg), Zinc (Zn) and Iron (Fe).
• Hence the reactivity order for reaction with water is Na > Mg > Zn > Fe.