The lightest element is EASY 1 Point -0.25 Negative MCQ #2848 Chemistry Sciences MDCAT Medical Question The lightest element is Options A Helium B Hydrogen C Lithium D Beryllium Reveal Answer Reset 📝 Explanation Hydrogen is the lightest element with an atomic mass of approximately 1. ← Previous MCQ📋 All MCQs📚 LearnNext MCQ → Related MCQs EASY The longest bone in the human body is MEDIUM The smallest bone in the human body is EASY The heart is located in