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Alkali metal is not stable and needs to receive the electrons which are donated by group 18 to achieve octet duplet electron arrangement
excuse. group 18 cannot donate . bcause group 18 already stable :'))
Alkali metal is not stable . alkali metal is d name for elments group 1 .they have 1 elektron valens . so they must donate/release 1 elektron tu to achieve susunan elektron oktet/duplet yg stabil.