34.2k views
4 votes
Choose the species with 15 protons and 18 electrons

User Ovasylenko
by
5.9k points

2 Answers

3 votes
The answer is phosphorus because the Atomic Number is the same as protons which is 15.

Hope this helps
User BA TabNabber
by
6.9k points
4 votes
Its Phosphorus with a negative 3 charge. 
User YaroslavTir
by
6.2k points