化学专业英语翻译Except for hydrogen, a gas ,the elements of group IA

化学专业英语翻译
Except for hydrogen, a gas ,the elements of group IA make up the alkali metal family The are very reactive metals, and they are never found in the elemental state in nature.However,their compounds are widespread.all the members of the alkali metal family form ions having acharge of 1+ only in contrast , the elements of group ⅠB - copper,sliver,and gold-are comparatively inert . they are similar to the alkali metals in that they exist as 1+ ions in many of their compounds. However, as is characteristic of most transition elements , they form ions having other charges as well