56.8k views
5 votes
The elements with the highest ionization energy and thus the most unreactive are:

User Crhistian
by
8.1k points

1 Answer

3 votes
The noble gases, because they already have a full valence shell
User Mahdi Jadaliha
by
8.3k points
Welcome to QAmmunity.org, where you can ask questions and receive answers from other members of our community.