Physical Properties of Roentgenium and Potassium
Melting Point
Not Available
Boiling Point
Not Available
Physical State
Solid
Solid
Color
Silver
Silvery Gray
Mohs Hardness
Not Available
Brinell Hardness
Not Available
Speed of Sound
Not Available
α Allotropes
Not Available
Not Available
β Allotropes
Not Available
Not Available
γ Allotropes
Not Available
Not Available