Use
Element 99, called einsteinium, was originallynamed ekaholmium because it appears tohave chemical properties similar to holmium. Itis produced by bombarding uranium-238 withstripped nitrogen atoms. It decays rapidly toform the lighter berkelium, or element 97. Neptunium(element 93), californium (element 98),and illinium (element 61), are also made atomically.The latter also has the names florentiumand promethium.