Balance this nuclear reaction by supplying the missing nucleus. 249/98 Cf+ + _____ ===>> 263/108 Sg + 4 1/0 n I thought it was 18/8 O^8+ , but apparently it's wrong. 

please use this google drive link to download the answer file.

https://drive.google.com/file/d/1hFRF9rrtrYbsWLNnxg51YHST5Cmu1Y1Z/view?usp=sharing

note: if you have any trouble in viewing/downloading the answer from the given link, please use this below guide to understand the whole process

https://helpinhomework.org/blog/how-to-obtain-answer-through-googledrive-link