In the periodic table, chemical elements are ordered by:A. number of protonsB. alphabetical orderC. abundance in the universeD. sizeE. year of discovery

The periodic table used today arranges elements in order by which of the following?Number of isotopesAtomic massAtomic numberPhase of matter

In the modern periodic table, elements are arranged in order of:A  increasing atomic massB  increasing number of neutronsC  increasing atomic numberD  increasing atomic radius*1 pointABCD

How are the elements arranged in the modern periodic table?A.According to atomic numberB.According to atomic massC.According to the number of neutronsD.According to the number of electrons

How are the elements arranged in the current periodic table?A.In order of increasing average atomic massB.In order of increasing number of electronsC.In order of increasing number of neutronsD.In order of increasing atomic number

The Modern Periodic Table of Elements is arranged by