![How many electrons does each of the four nitrogen atoms in purine contribute to the aromatic \pi system? | Homework.Study.com How many electrons does each of the four nitrogen atoms in purine contribute to the aromatic \pi system? | Homework.Study.com](https://homework.study.com/cimages/multimages/16/screenshot_2022-06-29_1233341525481042148271586.png)
How many electrons does each of the four nitrogen atoms in purine contribute to the aromatic \pi system? | Homework.Study.com
![How to identify the number of pi electrons in a conjugated system to calculate the HOMO-LUMO gap with the particle in the box approach? - ECHEMI How to identify the number of pi electrons in a conjugated system to calculate the HOMO-LUMO gap with the particle in the box approach? - ECHEMI](http://acf-file.echemi.com/fileManage/upload/community/20220428/vdkO4.png)
How to identify the number of pi electrons in a conjugated system to calculate the HOMO-LUMO gap with the particle in the box approach? - ECHEMI
![SOLVED: For the structures shown below; state the number of pi electrons present in the molecule Number of pi electrons Number of pi electrons Is the molecule aromatic according to the Huckel SOLVED: For the structures shown below; state the number of pi electrons present in the molecule Number of pi electrons Number of pi electrons Is the molecule aromatic according to the Huckel](https://cdn.numerade.com/ask_images/9e55c8f65af54302905e2b826894c15c.jpg)