s Block ElementshardNUMERICAL

How many elements in Group 1 are non-radioactive and occur in significant, stable quantities in natus Block Elements Chemistry Question

Question

How many elements in Group 1 are non-radioactive and occur in significant, stable quantities in nature?

Answer: 5

💡 Solution & Explanation

The elements Li, Na, K, Rb, and Cs are the 5 stable, non-radioactive alkali metals. Francium ($Fr$) is highly radioactive and naturally occurs only in trace amounts.

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