I need help, I need make a data table and record all the masses with the info en the image, I would really appreciate if you could help me! ):

13) a 14) a15) b16) i don't know sorry17) a (maybe)

Idon't hope someone you

Hello thereone of the following properties was originally used to arrange elements on the periodic table, but is no longer used to organize the modern version. which property fits this description? answer: atomic mass  was originally used to arrange elements on the periodic table, but is no longer used to organize the modern version.

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