I and II. The Alkaline Earth Metals and the Alkali Metals.
The 1st column from the left
Most reactive metals
The 1st column from the left
The most reactive metals are in the group 1 of the Periodic Table - the alkali metals.
They are called alkaline earth metals. They are a group of highly reactive metals.
The alkali metals in group 1 are the most reactive.
The 1st column from the left
The halogens (second column from the right
the most reactive metals are found on the far left.
Group 1 (metals) and Group 17 (non-metals).
The Alkali metals are the most reactive group of metals in the periodic table. Of these Francium is the most reactive metal of all.
The alkali earth metals are in the 2nd group, or column of the periodic table. They are bordered by the alkali metals on the left and the transition metals on the right.