资讯

BBC3 年
Group 7 halogens - GCSE Chemistry (Single Science) Revision - BBC
GCSE; WJEC; Group 7 halogens Introduction. The Group 7 elements are also known as the halogens. The three common Group 7 elements are chlorine, bromine and iodine.
BBC5 年
Reactions of alkali metals with halogens - Group 1 alkali metals - GCSE Chemistry ... - BBC
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.