Magnesium is most reactive with noble gases.
Alkaline earth metal found in group 2 of the periodic table.All the elements of group 2 have beryllium,magnesium, and calcium strontium,barium.these all have 2 valence electrons each in their atom.this all can lose their 2 valence electron easily to form positive ions. These are divalent and ionic in their chemical reaction.metals gets oxidised by losing their valence electrons.the chemical reactivity of a metal is equivalent to their lose of electrons.strontium is group 2 element that does not occur as a free element due to its extreme reactivity with oxygen and water.noble gases have full valence shell electrons.so,magnesium is most reactive with noble gases.
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