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The alkaline earth metals (beryllium (Be), magnesium (Mg), calcium (Ca), strontium (Sr), barium (Ba), and radium (Ra)) are a group of chemical elements in the s-block of the periodic table with very similar properties: shiny. silvery-white. somewhat reactive metals at standard temperature and pressure
The lower part of the stratosphere protects earth from metoroides because the temperature drops to -100 degrees
Albany Plan of Union, 1754. The Albany Plan of Union was a plan to place the British North American colonies under a more centralized government. ... Representatives of the colonial governments adopted the Albany Plan during a larger meeting known as the Albany Congress.
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