GCSE; WJEC; Group 1 alkali metals Reactions of alkali metals with halogens. The Group 1 elements, also known as the alkali metals, all react vigorously with water to produce an alkaline solution.

Halogens are highly reactive because they readily gain an electron to fill their outermost shell. Alkali metals are highly reactive because they readily lose the single electron in their outermost ...

Group 1 alkali metals. The Group 1 elements, also known as the alkali metals, all react vigorously with water to produce an alkaline solution. Group 7 halogens.

Alkali metals: The alkali metals make up most of Group 1, the table's first column. Shiny and soft enough to cut with a knife, ... Halogens: The top four elements of Group 17, ...