What is the element Le?
What is the element Le?
What is the element Le?
| Lanthanum | |
|---|---|
| Melting point | 1193 K (920 °C, 1688 °F) |
| Boiling point | 3737 K (3464 °C, 6267 °F) |
| Density (near r.t. ) | 6.162 g/cm3 |
| when liquid (at m.p. ) | 5.94 g/cm3 |
What is compounds of francium?
Common Compounds of Francium Fr+ Francium Sulfide. Fr2S. 478.065. Francium Dichromate.
What is the symbol for francium?
Fr
Francium/Symbol
Is Pu natural element?
Plutonium does occur naturally, but at very low concentrations. Indeed, it is all but unobservable, except by very sensitive modern analytical techniques. The reason that plutonium (and other transuranic elements) are so rare in nature is that being radioactive, they decay with a characteristic half-life.
What are 5 physical properties of francium?
Chemical properties of francium
| Atomic number | 87 |
|---|---|
| Electronegativity according to Pauling | 0.7 |
| Density | unknown |
| Melting point | 27 °C |
| Boiling point | 677 °C |
What is the formula of lithium ion?
Li+
Lithium ion | Li+ – PubChem.
What Colour is francium?
Data Zone
| Classification: | Francium is an alkali metal |
|---|---|
| Color: | silver-gray-metallic (presumed) |
| Atomic weight: | (223), no stable isotopes |
| State: | solid |
| Melting point: | 27 oC , 300 K |
Is francium a bomb?
Because the alkali metals react viciously with water, a huge explosion will result when the two substances are combined, especially with the heavier alkalis like cesium and francium. This is the explosion necessary for our francium Bomb. First off, francium is highly rare.