The position of an element in the Periodic Table is determined by?
A
its atomic radius.
B
its density.
C
its relative atomic mass.
D
the number of protons in its atom.
E
the number of neutrons in its atoms
Verified Correct Answer: D.
Chemical Principles & Mechanism
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.
Source: WAEC / JAMB / NECO Classroom Archive (Record #43327)