According to the periodic law of elements, the variation in properties of elements is related to their
atomic masses
nuclear masses
atomic numbers
nuclear neutron-proton number ratios.
As we learnt in
Modern periodic law -
The physical and chemical properties of elements are periodic functions of their atomic number.
-
The physical and chemical properties of elements are periodic functions of their atomic number.
Option 1)
atomic masses
This option is incorrect.
Option 2)
nuclear masses
This option is incorrect.
Option 3)
atomic numbers
This option is correct.
Option 4)
nuclear neutron-proton number ratios.
This option is incorrect.
Study 40% syllabus and score up to 100% marks in JEE