All of the alkali metals, periodic column 1 excluding hydrogen in a wide form Periodic Table, and all but the two lightest alkaline earth elements, periodic table column 2 excluding beryllium and magnesium, have the reactivity specified by the question.
the group 7 includes the halogens and the elements are flourine, clourine,bromine,iodine and astatine
Halogens!! :D its the most reactive nonmetal and has 7 valence electrons!
The elements in group 17 are known by the name halogens. They are non-metal elements and are at times referred to as salts.
The size of halogens or the group 17 elements is small.
Halogens
Group one elements react vigorously with water.They even react when exposed to air.For example lithium reacts violently with water.
Another name for Group 17 (VIIA) Elements is Halogens.
halogens
the group 7 includes the halogens and the elements are flourine, clourine,bromine,iodine and astatine
Halogens
Halogens Apex ;)
The halogens are the group 17 elements on the periodic table.
group 17
with group 17 elements or halogens
Halogens!! :D its the most reactive nonmetal and has 7 valence electrons!
The elements in group 17 are known by the name halogens. They are non-metal elements and are at times referred to as salts.
Halogens among halogens fluorine is most reactive