1-14
the function of graphite in the first atomic reactor was to
absorb fast neutrons
in the fissioning of uranium, a chain reaction is caused by
ejected neutrons
when a lump of uranium is broken into smaller pieces, the total surface area of the lump
increases
Electrical forces inside a nucleus contribute nuclear
instability
Uranium-235, uranium-238, and uranium-239 are different
isotopes
compared to the mass of a uranium nucleus before splitting, the pieces it splits into have
less mass
in nuclear fission and nuclear fusion reactions, the amount of mass converted to energy is about
less than 1%
a nucleon has more mass when it is
outside the nucleus
a nucleon has more potential energy with respect to a nucleus when it is
outside the nucleus
when neptunium emits a beta particle, the result is
plutonium
U-235 and Pu-239 are both
radioactive isotopes fissionable isotopes heavier than lead
the different in the mass of a nucleon when outside an atomic nucleus compared to inside the nucleus depends on
the atomic number of the nucleus
which will leak more neutrons, two separate lumps of uranium or the same two lumps stuck together?
two separate lumps
in a breeder reactor
uranium is coverted into plutonium