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a group of metallic elements that have two electrons in their outer shells and react easily with other elements. Group 2 in the periodic table.
during chemisorption a chemical bond forms between the molecule on a surface and the surface....
a special type of ion exchange reaction in which either carbonic acid or sulfurous acid is...
the phase change of a substance from the solid phase directly into the gas phase without passing...
two or more different forms or structures of the same element.