Alkali metals are the elements in the 1st group. In the 1st group,the reactivity of the elements increase down the group. Cs is the most reactive alkali metal.
Noble gases (group 18) are the almost nonreactive elements. Group 1 elements are the most reactive metals. Group 17 elements are the most reactive non-metals.
Group I, the Alkalai Metals
elements in group 1
They all have 2 electrons in their outermost shells, with beryllium(Be) having a electronic structure of 2.2, magnesium(Mg) having 2.8.2, calcium(Ca) having 2.8.8.2 and so on. This means that they have similar chemical reactivity.
The most reactive goup in the metals is the Alkali metals (Group I) The most reactive non-metal group is Group 17 or VIIA) the Halogens. It is difficult to say which of the two groups is more reactive. Chemists will say that Flourine is the most reactive element. Note that Group 18 is the least reactive, most stable.
Noble gases (group 18) are the almost nonreactive elements. Group 1 elements are the most reactive metals. Group 17 elements are the most reactive non-metals.
Alkali metals are group-1 elements. They are located at extreme left in periodic table.
Group 1 (for metals) and group 17 (for non metals).
The alkali metals group.
Group I, the Alkalai Metals
Group 1, the alkali metals, are much more reactive with oxygen than Group 11, the coinage metals.
The alkali metals
Because they are all alkali-metals and alkali -metals are known for being very reactive.
elements in group 1
The most reactive metals are the alkali metals in group 1a.
No that is group 2. Group 1 is called Alkali metals.
Group 1 (metals) and Group 17 (non-metals).