Calcula los miligramos de dextrosa necesarios para preparar 200ml de una solución acuosa de este azúcar cuya concentración sea de 0.3mg/ml.

distance, luminosity, brightness, radius, chemical composition, and temperature

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.