Write the COMPLETE nuclear equation below for the decay of C-14. Include both the atomic number and mass number of the missing particle.
(Answer in this format: MASS NUMBER-ELEMENT SYMBOL-ATOMIC
NUMBER; ex: 14-C-6; include charge.)

*tilts head* sounds more like a statement

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.