Which of the 1905 papers gave the first good theoretical proof for the existence of atoms (and was soon confirmed by experiment)?

2. Question 2 Once you have completed Exercise 3, what is the correct formula in cell K197? 1 point   =SUMIFS(Head_Count,Office_Name,$B197,Role,”Finance”,AvgHourlyCost,”>=”&K$185,AvgHourlyCost,”<=”&K$186) =COUNTIFS(Head_Count,Location_Name,$B197,Role,”Finance”,AvgHourlyCost,”>=”&K$185,AvgHourlyCost,”<=”&K$186) =SUMIFS(Head_Count,Location_Name,$B197,Role,”Finance”,AvgHourlyCost,”>=”&K$185,AvgHourlyCost,”<=”&K$186)