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Alkaline Earth Metals

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Alkaline Earth Metals
ALKALINE EARTH METALS what are alkaline earth metals?
Alkaline earth metals are elements that are in the second group of the periodic table. the elements have two electrons on the outermost shell. the elements include Beryllium, magnesseum, calcium,strontium, barium and Radium.The alkaline earth metals are all silver­colored and soft, and have relatively low

densities, melting points, and boiling points. In chemical terms, all of the alkaline metals react with the halogens to form the alkaline earth metal halides
Why are the called alkaline earth metals

The alkaline earth metals are named after their oxides, the alkaline earths, whose old­fashioned names were beryllia, magnesia, lime, strontia, and baryta. These oxides are basic (alkaline) when combined with water. "Earth" is an old term applied by early chemists to nonmetallic substances that are insoluble in water and resistant to heating—properties shared by these oxides. Physical Properties of Alkaline Earth metals 1.

They normally conduct electricity well.

2.

They are extremely reactive and radium is radioactive and harmful to life.

Physical properties 3.

Alkaline earth metals have a higher melting point than other metals in different groups.

4.

Alkaline earth metals are relativly dense.

5.

And finally, alkaline earth metals are relatively hard.

Chemical Properties:
1.

All of the alkaline earth metals form an oxide (rust) on their surface at room temperature (except for
Beryllium).

2.

All of the alkaline earth metals (except Beryllium) reduce water and dilute acids to hydrogen.

3.

Magnesium can reduce, and burn in, carbon dioxide. https://www.youtube.com/watch?v=_xCbal2YyaE https://www.youtube.com/watch?v=FofPjj7v414

burning magneseum youtube.com/watch?v=_xCbal2YyaE

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