Which combination of protons and neutrons below would be stable (not radioactive) using the graph above?
O 60 protons, 64 neutrons
O 60 proton, 82 neutrons
O 60 protons, 90 neutrons
O 60 protons, 100 neutrons

e

explanation:

2b2t

explanation:

2b2t

c) should be the answer.

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.