Alkali metals, found in the first group of the periodic table, are generally known for what characteristic?

Explanation

Alkali metals, including elements like sodium and potassium found in the leftmost group of the periodic table, are generally highly reactive, particularly with water, often producing hydrogen gas and heat in reactions that can sometimes be vigorous or even explosive. Because of this high reactivity, alkali metals are never found in nature in their pure elemental form and must be stored carefully, often submerged in oil, to prevent unwanted reactions with air or moisture. As you move down this group of the periodic table, elements generally become even more reactive. Explore more Everyday Science MCQs on mcqstutor to keep practicing.