Question:
A. A main group element with the valence electron
Last updated: 8/4/2022
![A. A main group element with the valence electron](https://media.kunduz.com/media/sug-question/raw/59726844-1659633658.6057847.jpeg?h=512)
A. A main group element with the valence electron configuration 2s22p5 is in periodic group It forms a monatomic ion with a charge of B. A main group element with the valence electron configuration 2s¹ is in periodic group It forms a monatomic ion with a charge of