Alkali Metals and most reactive element to alkali

http://www.chemicalelements.com/groups/alkali.html

The Alkali Metals are:

Lithium
Sodium
Potassium - Tulmeric
Rubidium
Cesium
Francium

Most reactive to Alkali Metals

http://en.wikipedia.org/wiki/Halogen

Flourine
Chlorine
Bromine
Iodine
Astatine


http://chemwiki.ucdavis.edu/Inorganic_Chemistry/Descriptive_Chemistry/s-Block_Elements/Group__1%3A_The_Alkali_Metals