Answers

2015-09-08T20:55:48+05:30
Alkali metals are the first group elements . They are called so because when these elements combine with water they form bases.. they second group elements are called alkali earth metals
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2015-09-08T21:00:32+05:30
Any of the elements lithium, sodium, potassium, rubidium, caesium, and francium, occupying Group IA (1) of the periodic table. are alkaline metals.
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