To which group do the alkaline earth metals such as radium, barium and strontium belong?
Show answer & explanation
Correct answer: B
Explanation
The correct answer is option 2 i.e. Group 2A.
Alkaline earth metals, including radium, barium, and strontium, belong to Group 2A of the periodic table, also known as Group 2. This group comprises elements that have two electrons in their outermost shell, which they readily lose to form +2 cations. Characterized by their metallic properties, alkaline earth metals are typically shiny, silvery-white, and relatively reactive, although less so than alkali metals in Group 1. They are known for forming compounds with various nonmetals and play essential roles in various applications, including construction, fireworks, and biological processes, particularly calcium in living organisms.