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Magnesium (Mg)
Calcium (Ca)
Strontium (Sr)

Mg, Ca and Sr are all metals. They are found in row two of the periodic table. These metals are know as Alkali earth metals. Each metal has two valence shells around the nucleus.

The elements Mg, Ca, and Sr have in common that all are Alkali Earth metals

Alkali Earth metals:

These are the elements of second group or row of periodic table. This also known as Beryllium group.

For example- Mg, Ca and Sr.

  • They has two valence shells around the nucleus.
  • They has 2 electron in the valence shell.

Therefore, the elements Mg, Ca, and Sr have in common that all are Alkali Earth metals.

To know more about Alkali Earth metals,

https://brainly.com/question/11857448

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