/ http://www.slideshare.net/images/logo.gif / 際際滷Share feed for 際際滷shows by User: abufatimahgamp https://cdn.slidesharecdn.com/profile-photo-abufatimahgamp-48x48.jpg?cb=1570006176 Composed of a bunch of quarks and leptons bind together with the exchage of photons and gluons