what is allotropy
Kindly refer to the following link:
https://www.meritnation.com/ask-answer/question/what-is-allotropy/the-p-block-elements/1516444
https://www.meritnation.com/ask-answer/question/what-is-allotropy/the-p-block-elements/484115
https://www.meritnation.com/ask-answer/question/what-is-allotropy/the-p-block-elements/1561904
https://www.meritnation.com/ask-answer/question/what-is-allotropy/the-p-block-elements/1516444
https://www.meritnation.com/ask-answer/question/what-is-allotropy/the-p-block-elements/484115
https://www.meritnation.com/ask-answer/question/what-is-allotropy/the-p-block-elements/1561904