The position of an element in the Periodic Table is determined by?
- its atomic radius.
- its density.
- its relative atomic mass.
-
the number of protons in its atom.
- the number of neutrons in its atoms
The correct answer is: D
Explanation
In the modern periodic table, the elements are listed in order of increasing atomic number.
The atomic number is the number of protons in the nucleus of an atom.