Question

What is ionization?

• A. Adding neutrons to an atom
• B. Removing neutrons from an atom
• C. Adding protons to an atom
• D. Removing electrons from an atom
• E. Removing protons from an atom

Answer 1

The correct option is D Removing electrons from an atom

Removing of electrons from an atom is ionization.
Atoms and molecules are electrically neutral in that the number of negatively charged electrons is exactly equal to the number of positively charged protons. Much of the "normal matter" that we find around us is in this form. However, particularly when there are energy sources available, atoms or molecules can gain or lose electrons and acquire a net electrical charge. This process is called ionization.