×
Potassium
☒
Francium
☒
Top
ADD
⊕
Compare
Home
Compare Metals
Find
▼
Transition Metals
Actinide Metals
Lanthanide Metals
Post-Transition Metals
Alkaline Earth Metals
Alkali Metals
X
Potassium
X
Francium
Physical Properties of Potassium and Francium
Potassium
Francium
Add ⊕
Summary
Periodic Table
Facts
Uses
Physical
Chemical
Atomic
Mechanical
Magnetic
Thermal
All
1 Physical
1.1 Melting Point
63.65 °C
27.00 °C
Tin
▶
⊕
27
3410
1.2 Boiling Point
774.00 °C
677.00 °C
Physical Properties of Flerovium
▶
⊕
147
5660
1.3 Appearance
1.3.1 Physical State
Solid
Solid
1.3.2 Color
Silvery Gray
NA
1.3.3 Luster
NA
NA
1.4 Hardness
1.4.1 Mohs Hardness
0.40
NA
Physical Properties of Cesium
▶
⊕
0.2
8.5
1.4.2 Brinell Hardness
0.36 MPa
NA
Physical Properties of Cesium
▶
⊕
0.14
3490
1.4.3 Vickers Hardness
NA
NA
Physical Properties of Palladium
▶
⊕
121
3430
1.5 Speed of Sound
2,000.00 m/s
NA
Physical Properties of Thallium
▶
⊕
818
16200
1.6 Optical Properties
1.6.1 Refractive Index
NA
NA
Physical Properties of Mercury
▶
⊕
1.000933
1.7229
1.6.2 Reflectivity
NA
NA
Physical Properties of Molybdenum
▶
⊕
58
97
1.7 Allotropes
✔
✘
✔
✘
1.7.1 α Allotropes
Not Available
Not Available
1.7.2 β Allotropes
Not Available
Not Available
1.7.3 γ Allotropes
Not Available
Not Available
Compare All Metals
Potassium vs Uranium
Potassium vs Thorium
Potassium vs Gadolinium
All Metals
Magnesium
Titanium
Calcium
Neodymium
Gadolinium
Uranium
All Metals
Thorium
Periodi...
|
Physical
|
Chemical
|
Mechanical
Aluminium
Periodi...
|
Physical
|
Chemical
|
Mechanical
Lead
Periodi...
|
Physical
|
Chemical
|
Mechanical
Compare All Metals
Francium vs Calcium
Periodi...
|
Physical
|
Chemical
|
Mechanical
Francium vs Neodymium
Periodi...
|
Physical
|
Chemical
|
Mechanical
Francium vs Titanium
Periodi...
|
Physical
|
Chemical
|
Mechanical