Many metals have a possible +2 oxidation state. Some metals do obtain it preferentially, however:
Group 12 metals (Zinc, Cadmium, Mercury) tend to have +2 oxidation states due to their electron configuration (d10, s2) retaining a full d orbital when 2 electrons are removed.
Group 8 metals (like Iron) also commonly have +2 oxidation states, possibly due to the 'half filled shell' effect.
The alkaline earth metals are those in the same group as calcium; they have two valence electrons.
Group 2 metals have 2 valence electrons. In fact, the number of valence electrons of elements can be deduced from the group number (e.g. group VII elements have 7 valence electrons).
The alkaline earth group has two valence electrons.
Alkali metals belong to Group 1 of the periodic table and include elements like lithium, sodium, and potassium. Group 2 metals are known as alkaline earth metals and include elements like magnesium and calcium. The main difference is that alkali metals are more reactive than Group 2 metals because they have one valence electron, while Group 2 metals have two valence electrons.
The group of elements with two valence electrons in each period is known as the alkaline earth metals. These elements include beryllium, magnesium, calcium, strontium, barium, and radium. They are located in group 2 of the periodic table.
alkaline earth metals (group 2 elements) have two valence electrons
The alkaline earth metals are those in the same group as calcium; they have two valence electrons.
Group 2 metals have 2 valence electrons. In fact, the number of valence electrons of elements can be deduced from the group number (e.g. group VII elements have 7 valence electrons).
Group II elements (also called alkaline earth metals), have two valence electrons. To fill their outer shell, they therefore become ions with two positive charges, such as magnesium: Mg -> 2e- + Mg2+
Alkaline Earth metals :)
Because they have two valence electrons.
alkaline earth metals or group 2 elements have two valence electrons and make +2 ion.
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
The alkaline earth group has two valence electrons.
Alkali metals belong to Group 1 of the periodic table and include elements like lithium, sodium, and potassium. Group 2 metals are known as alkaline earth metals and include elements like magnesium and calcium. The main difference is that alkali metals are more reactive than Group 2 metals because they have one valence electron, while Group 2 metals have two valence electrons.
The group of elements with two valence electrons in each period is known as the alkaline earth metals. These elements include beryllium, magnesium, calcium, strontium, barium, and radium. They are located in group 2 of the periodic table.
The alkaline earth metals are those in the same group as calcium; they have two valence electrons.