Ag+ (aq) + al(s) —> ag(s)+a13+ (aq)
ag + (aq) + e ag(s)
al(s) — > a13+ (aq) + 3e -
what is the coefficient of silver in the final, balanced equation for this reaction?
1

answer: atomic mass was originally used to arrange elements on the periodic table, but is no longer used to organize the modern version.

explanation:

originally atomic mass was used to arrange elements on the periodic table from left to right in a row. each column then shows similar properties of elements of a group.

in modern periodic table, the atoms are arranged in increasing atomic number. as atomic number represents the number of protons in an atom which is unique for every atom.