Page 45 - Curriculum Visions Dynamic Book

Cadmium
Good conductor of heat
A soft, blue–white metal, chemical symbol Cd
A very reactive metal used as a protective coating on steel
Has no taste
Melts at a lower temperature than most other metals (321°C)
Density 8.65 g/cc
SHELL DIAGRAMS
The shell diagrams on these
two pages represent an atom of each element. 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)
Atomic number 48, atomic weight about 112
 When a solution of yellow potassium chromate is dropped into a colourless solution of mercuric nitrate, an orange precipitate of mercuric chromate forms.
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