The elements of the Periodic Table are arranged on order of increasing (1) atomic number

(2) mass number

(3) number of isotopes

(4) number of moles

Question

Ronald

6 February, 11:20

+2

Answers (2)

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Kaeden Holmes · Answer 1

They're arranged by increasing atomic (proton) number. They used to me sorted by mass number, but that resulted in some anomalies in the table

Nash Watson · Answer 2

1. the periodic table is arranged in order of atomic number

The elements of the Periodic Table are arranged on order of increasing (1) atomic number(2) mass number(3) number of isotopes(4) number of moles