what is isotone?
Kindly refer to the following link:
https://www.meritnation.com/ask-answer/question/what-is-isotone-and-isoelectronics/structure-of-atom/5430736
https://www.meritnation.com/ask-answer/question/what-is-isotone-and-isoelectronics/structure-of-atom/5430736