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14 February, 18:07

Group 2 in the penodic table contains the elements beryllium (Be), magnesium (Mg), calcium (Ca), strontium (Sf)) barium (Ba) and radium (Ra) What characteristic do these elements share?

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  1. 14 February, 22:00
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    They are all alkali earth metals.

    Explanation:

    Their valence shell each has 2 electrons. Also, they are all shiny, silvery-white, somewhat reactive metals at standard temperature and pressure. They form alkaline solutions, hydroxides, when reacting with water and their oxides are found in the earth's crust.
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