Yes you can use it. That is if you can use the picture you can take from this site, as I do not have a high resolution copy of it in my possession.
It has been used in a schoolbook about chemistry.

I would like to use your scientist picture in a school project. Would that be possible? Only the students in my class and the professor would see it. I do not want to break copyright laws, so I am asking permission. Thank you in advance.