write note on group IA , IIA
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Most of the chemistry of the alkaline-earth metals (Group IIA) can be predicted from the behavior of the alkali metals (Group IA). ... These metals are less reactive than the neighboring alkali metal. Magnesium is less active than sodium; calcium is less active than potassium; and so on.
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Li, Na, K, Rb, Cs, Fr are the elements of group I-A.
All the elements of group I-A contain one electron in their outermost shell.
They are univalent.
Elements of group I-A are metals.
They have the largest atomic size.
They easily loose electron.
They have low ionization potential (I.P) and are very electropositive.
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