* Beryllium (Be)
* Magnesium (Mg)
* Calcium (Ca)
* Strontium (Sr)
* Barium (Ba)
* Radium (Ra)
These elements share several common characteristics, including:
* High reactivity: They are all reactive metals, although less reactive than the alkali metals (group 1).
* Two valence electrons: They have two electrons in their outermost shell, which makes them readily form ionic bonds by losing these electrons.
* Form alkaline oxides: When reacting with oxygen, they form oxides which are alkaline (basic) when dissolved in water.
* Soft and silvery: They are soft metals, with a silvery white appearance.
* Good conductors of heat and electricity: They are good conductors of heat and electricity.
Let me know if you'd like to learn more about any specific alkaline earth metal!