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It is because alkali metals are larger in size than alkaline earth metals.Also, the effective nuclear charge is more in case of alkaline earth metals. This makes their ionization enthalpies larger than alkali metals.

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What are the key differences between alkaline earth metals and alkali metals?

Alkaline earth metals have two valence electrons, while alkali metals have one valence electron. Alkaline earth metals are harder and have higher melting points compared to alkali metals. Additionally, alkaline earth metals are less reactive than alkali metals.


What are characteristic properties of alkaline earth metals?

they are harder than alkali metals


What are characteristic property of the alkaline earth metals?

they are harder than alkali metals


Why are alkaline earth metals harder than alkali metals?

i thought increase in size.


Which element group is made up of shiny solids that are harder than alkali metals?

The group you're referring to is the group of alkaline earth metals. They are shiny solids that are harder than alkali metals. Examples include calcium, magnesium, and barium.


Are alkali and alkaline earth metals are not reactive?

No. The alkali and alkaline earth metals are very reactive.


Is alkali the only earth metal?

No, alkali metals are not the only earth metals. Earth metals include both alkali metals and alkaline earth metals. Alkaline earth metals are a group of elements in the periodic table that are chemically similar to, but less reactive than, alkali metals. Examples of alkaline earth metals include magnesium, calcium, and barium.


Why are earth alkali metals called earth alkali metals?

Alkali earth metals are named after their oxides, alkaline earth.


Which is more metallic alkaline metals or alkaline earth metals?

alkali metals


Why the melting point boiling point and densities of alkaline earth metals are higher than alkali earth metals?

Alkaline earth metals do not exist , only alkali earth metals


What are the differences between alkali metals and alkaline earth metals in terms of their properties and reactivity?

Alkali metals and alkaline earth metals are both groups of elements on the periodic table, but they have distinct differences in their properties and reactivity. Alkali metals are located in Group 1 of the periodic table and are highly reactive, soft metals that easily lose their outermost electron to form positive ions. In contrast, alkaline earth metals are located in Group 2 and are less reactive than alkali metals, but still have a tendency to lose electrons to form positive ions. Alkaline earth metals are harder and have higher melting points compared to alkali metals. Overall, alkali metals are more reactive and have lower melting points than alkaline earth metals.


In what ways do alkali metals and alkaline earth metals differ?

Alkali metals and alkaline earth metals differ in their reactivity and properties. Alkali metals are more reactive and have one electron in their outer shell, while alkaline earth metals are less reactive and have two electrons in their outer shell. Additionally, alkali metals are softer and have lower melting points compared to alkaline earth metals.