An element X has 127 neutrons and 82 electrons.
Its atomic number is?
A
209
B
105
C
45
D
82
Verified Correct Answer: D.
Chemical Principles & Mechanism
An atom that has equal number of protons and electrons is called a neutral atom.
With 82 electrons, the atomic number is also 82
Source: WAEC / JAMB / NECO Classroom Archive (Record #13941)