Physical Properties of Promethium and Cadmium
Physical State
Solid
Solid
Color
Unknown
Silvery Bluish-Gray
Mohs Hardness
Not Available
Brinell Hardness
Not Available
Speed of Sound
Not Available
Reflectivity
Not Available
α Allotropes
Not Available
Not Available
β Allotropes
Not Available
Not Available
γ Allotropes
Not Available
Not Available