Alkali metals have one valence electron in S orbital . hence , this electron can be donate easily . thus all the alkali metals acts as reducing agent in general chemical reactions .
Alkali metals are the elements of group 1 in the periodic table .
It has a strong tendency to donate their valence electron in the last shell to form ionic bond .
They have least nuclear charge in their period .
Nuclear charge decreases and atomic radius increases down the group .
To prevent oxidation they are mostly stored in a oil containing jar .
The density of this group metal is very low .
General electronic configuration is ns1 .
They are good conductor of heat and electricity .
When these metals react with water produce a alkaline solution and release hydrogen gas .
Group 1 elements includes lithium , sodium , potassium , rubidium , Caesium .
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