Best Answer: In the most common form of atomic bomb uranium 235 is split by striking it with a low energy neutron. Generally the heavier an element the easier it is to split its atom (fission).
Grainger's headquarters is located in Lake Forest, Illinois.
Allergan Creating New U.S. Headquarters in Madison â Combining Five N.J. Sites and adding 300 New Jobs Wednesday, October 5th, 2016 In 2017, the global pharmaceutical company Allergan will combine most of its New Jersey operations, presently located in five separate locations throughout the state, into a new U.S. Administrative Headquarters in Madison, officials announced at an event yesterday in Madison.