Radius of the tube: _cm
Data Collected
Calculations
Temperature
of gas
(°C)
Height of the
column of gas
(cm)
Temperature
of gas
(K)
Volume of gas
(cm)
Ratio V/T
(cm)
Near 0°C
Near 20°C
Near 40°C
Near 60°C
Near 80°C
Near 100°C
Additional
Additional
Additional
Additional
Additional
Additional

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.