4.8g of sulfur and 5.4 g of aluminum react based on the chemical equation below and 4.5 g ofaluminum sulfide (AI2S3) are recoveredfrom the reaction, a small amount cannotbe recovered. 3S +2AI-> AI2S3
Determine the percent yield of AI2S3. (molar mass of S= 32.06 g/mol, molar mass of AI= 26.98 g/mol)

b. is the answer hoped i        

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.