${\rm{M}}\,\,\,\,\,\,\,\,\,{\rm{:}}\,\,\,\,\,\,\,\,\,\,\,\,{\rm{O}}\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,{\rm{M}}\,\,\,\,\,\,\,\,\,\,\,{\rm{:}}\,\,\,\,\,\,\,\,\,\,\,\,{\rm{O}}$
$\frac{{{\rm{50}}}}{{\rm{x}}}\,\,\,\,\,\,\,\,:\,\,\,\,\,\,\,\,\,\,\,\frac{{50}}{{16}} = 1:1\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\frac{{40}}{x}\,\,\,\,\,\,\,\,\,:\,\,\,\,\,\,\,\,\,\,\,\,\frac{{60}}{{16}}$
$x = 16\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,2\,\,\,\,\,\,\,\,\,\,:\,\,\,\,\,\,\,\,\,\,\,\,\,\,3\,\,\,\,\,\,\,\,\,\,\,\,\,{M_2}{O_3}\,\,$
[અણુ દળ - ${Na}: 23.0\, {u}, {O}: 16.0\, {u}, {P}: 31.0 \,{u}]$