producing an alkaline solution and hydrogen gas. The metals become more reactive as you go down the group. The elements in group 7 are known as halogens. Fluorine and chlorine are gases. Bromine ...
producing an alkaline solution and hydrogen gas. The metals become more reactive as you go down the group. The elements in group 7 are known as halogens. Fluorine and chlorine are gases. Bromine ...
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