Page 44 - Curriculum Visions Dynamic Book

Key facts about...
Uranium
Harmful to life Heavy element
Melting point 1132°C
Poor conductor of electricity
A soft, silvery metal, chemical symbol U
Atomic number 92, atomic weight about 238
Decays naturally through a radioactivity series to lead
Used as a source of fissionable fuel
Dissolves in acids
SHELL DIAGRAMS
The shell diagram on this page
is a representation of an atom
of the element uranium. The total number of electrons is shown in the relevant orbitals, or shells, around the central nucleus.
Electron shell
Electron
Nucleus containing protons and neutrons (called nucleons)
 Advanced gas-cooled reactor fuel elements being placed in a reactor core.
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