36.2k views
3 votes
These four elements are most likely in group 15. 16. 17. 18.

User Justik
by
5.8k points

2 Answers

1 vote

Answer:

17

Explanation:

User Mikael Jansson
by
6.2k points
3 votes

Answer:

17

Explanation:


User GaloisGirl
by
6.2k points