Alkaline Earth Metal


any element of the periodic table which is in group 2.
in order of proton number, beryllium, magnesium, calcium, strontium, barium and radium are all alkaline earth metals.

they are characterized by all having 2 outer-sh-ll electrons (two electrons in their valence sh-ll), alas their placing in group 2 of the periodic table.

they are all silver coloured, soft metals which react readily to form ionic compounds.

the name ‘alkaline earth metals’ is derived from the fact that the oxides formed by the elements in this group produce basic alkaline solutions, and the melting points are such that the elements remain solid (earths) in fires. alkaline earth refers to the oxides themselves.

x + 2h2o –> x(oh)2 + h2

2x + o2 –> 2xo
2xo + 2h2o –> 2x(oh)2

where x is an alkaline earth metal.
both processes are relatively efficient unless you consider hydrogen, which is produced in the first, to be a waste product. the second process only produces the hydroxide.
magnesium is an alkaline earth metal – it, and its oxide, react with water to form a basic alkaline solution.

mg + 2h2o –> mg(oh)2 + h2
magnesium + water –> magnesium hydroxide + hydrogen

2mg + o2 –> 2mgo
magnesium + oxygen –> magnesium oxide
2mgo + 2h2o –> 2mg(oh)2
magnesium oxide + water –> magnesium hydroxide

the electron configuration of magnesium is 2,8,2 – two electrons in its outer/valence sh-ll

Read Also:

  • Alkapoo

    the morning defication after a heavy night of drinking that has a distinctive odor of sweet and sour omg i just dropped a gnar stinky alkapoo!

  • All Bit

    to be p-ssed off, or incredibly angry. state of bitterness; the act of having many hickies. for example if harrison said, “hey ben, you’re just not bad -ss.” jumar would say “ben’s all bit!”

  • all but six

    to kill everbody involved except six people. they will be the pall bearers at the funeral. to waste everbody but enough for the funeral. we killed all them n-gg-s, all but six

  • All Chill Ill

    adj: it’s like being chill, except on a whole nother level. 1: sometimes being all chill ill is the best way to deal with all this sh-t.

  • allennessa

    baby girl of a very handsome man and a beautiful woman “look at that beautiful baby, her name must be allennessa”


Disclaimer: Alkaline Earth Metal definition / meaning should not be considered complete, up to date, and is not intended to be used in place of a visit, consultation, or advice of a legal, medical, or any other professional. All content on this website is for informational purposes only.