Get Started
1224

Q:

What is the mass number of an element, the atom of which contains two Protons, two neutrons and two electrons? 

  • 1
    2
  • 2
    4
  • 3
    6
  • 4
    8
  • Show Answer
  • Workspace

Answer : 2. "4 "

Previous Next
GK Chemistry Questions

The Most Comprehensive Exam Preparation Platform

Get the Examsbook Prep App Today