Question

highly reactive metal that can easily react with oxygen​

Answer 1

Answer:

Caesium

Explanation:

Caesium, the most reactive metal in the periodic table, reacts extremely violently – hence why it can't be demonstrated in a classroom! This can be compared to other common metals, such as iron and copper, which produce no reaction when dropped into water.

Answer 2

Answer:

Oxygen is very reactive with Alkali metals.alkali metals are given the name alkali because the oxides of these metals with water to form a metal hydroxide that is basic or alkaline.