Which reaction would be predicted by the activity series list? ANSWER D ON A PE X A. A metal replaces a metallic ion above it on the list.

B. A metal reacts with oxygen in a combustion reaction.

C. A metal ion reacts with another ion to form a precipitate.

D. A metal replaces a metallic ion below it on the list.

where are the choice options?

wher is the rest of the question

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.