Question

Which two groups of elements in the periodic table are the most reactive?(1 point)
alkali metals and halogens
alkaline earth metals and halogens
noble gases and alkali metals
halogens and noble gases

Answer 1

The two groups of elements in the periodic table that are the most reactive are **alkali metals and halogens**. Alkali metals (group 1) are highly reactive, especially with water, and halogens (group 17) are also very reactive, particularly with alkali metals and alkaline earth metals.