Khaara matti dhaatu

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Khaara matti dhaatu , periodic table me ek element ke jhund hae. Ii sab Alkali dhaatu ke rakam hae lekin otna jaada reactive nai hae.

Khaara matti dhaatu hae: beryllium, magnesium, calcium, strontium, barium, aur radium. Radium radioactive hae.

The alkaline earth metals