The alkaline earth metals are a series of elements comprising Group 2 (IUPAC style) (Group IIA) of the Periodic Table: beryllium (Be), magnesium (Mg), calcium (Ca), strontium (Sr), barium (Ba) and radium (Ra). This specific group in the periodic table owes its name to their oxides that simply give basic alkaline solutions.
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The alkaline earth metals in the periodic table are in group 2. They would be Be, Mg, Ca, Sr, Ba and Ra.
Group 1 Elements- Ap.ex
Beryllium magnesium strantium calcium barium radium
Alkaline earth metals
Alkali metals (group 1 elements) have one valence electron. Hence have one ionization energy Alkaline earth metals (group 2 elements) have two valence electron. Hence have two ionization energy
Group 2
2 valence electrons (apex)