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tersebut bersifat basa dan banyak ditemukan dalam mineral tanah.
Logam alkali tanah umumnya reaktif, tetapi kurang reaktif jika
dibandingkan dengan logam alkali
Unsur-unsur Golongan 2 Alkali Tanah Logam:
simbol konfigurasi elektron
berilium Be [la] 2s2
magnesium Mg [Ne] 3s2
kalsium Ca [Ar] 4s2
strontium Sr [Kr] 5s2
barium Ba [Xe] 6s2
radium Ra [Rn] 7s2