3.The table below displays the temperature of substance A and substance B placed near each other, but not touching, in the same room. Temperature was taken at three time intervals. Give a reasonable explanation for the temperature change of substance A but not substance B. Time of Day
Temperature of Substance A
Temperature of Substance B
2:00 pm
32℃
25℃
2:05 pm
29℃
25℃
2:10 pm
26℃
25℃

he would use the colour black

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.