Help asa, A container with a fixed amount of gas is at a volume of 121 mL and a pressure of
0.892 atm. If the volume is increased to
221 mL then what will the new pressure
be?
A-0.488 atm
B-2.05 atm
C-1.63 atm

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.