Which of the following elements would lose an electron easily?
  1. Mg
  2. Na
  3. K
  4. Ca

AcademicChemistryNCERTClass 10

Correct answer: (c) K

Explanation: K loses an electron easily as it is a group 1 metal whose atomic number is greater than that of Na. Mg and Ca are group 2 metals and their tendency to lose electrons decreases on moving from left to right in a period of the periodic table.

Updated on 10-Oct-2022 13:19:20