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What are the common properties of the following element groups:
Alkaline Earth Metals
Alkali Metals
Halogens
Noble Gases


Sagot :

Answer:

Alkali and alkaline-earth cations are energetically stable with an empty valence shell. Atoms of alkali and alkaline-earth elements achieve octets after losing one (alkali) or two (alkaline-earth) electrons such that they minimize the potential energy of the system.