Whats the rarest thing in space?
Whats the rarest thing in space?
Now astronomers have spotted a bizarre star that may prove to be one of the rarest objects ever, with maybe as few as five or six of them in the galaxy. The object in question is known as J005311, located in the constellation Cassiopeia about 10,000 light-years from Earth.
Why is lutetium so expensive?
Fast Facts: The Most Expensive Natural Elements If you order 100 grams of lutetium, it will cost about $10,000. Atoms of synthetic elements cost millions of dollars to produce. Sometimes they don’t even last long enough to be detected. Scientists only know they were there because of their decay products.
What is the most expensive rare earth?
Californium 252 This is a Man Made element that sells for NEARLY $30,000,000 PER GRAM. The reason for this ultra-expensive price is its rarity as only 8 grams have ever been made since 1950 and this extra-rare metal only last around 5 years.
What is the heaviest gas on Earth?
Tungsten hexafluoride
| Names | |
|---|---|
| Molar mass | 297.830 g/mol |
| Appearance | Colorless gas |
| Density | 12.4 g/l (gas) 4.56 g/cm3 (−9 °C, solid) |
| Melting point | 2.3 °C (36.1 °F; 275.4 K) |
Has element 120 been discovered?
Unbinilium and Ubn are the temporary systematic IUPAC name and symbol, which are used until the element is discovered, confirmed, and a permanent name is decided upon….
| Unbinilium | |
|---|---|
| Alternative names | element 120, eka-radium |
| Unbinilium in the periodic table | |
Why does the third period contain 8 elements but not 18?
According to the 2n2 rule, the maximum number of electrons in the third period = 2 x (3)2 = 18. But, the last shell cannot accommodate more than 8 electrons so, the number of electrons in third period is 8. Hence, the number of elements is also 8.
What is the largest stable element?
uranium
What is element 119 called?
Ununennium, also known as eka-francium or element 119, is the hypothetical chemical element with symbol Uue and atomic number 119. Ununennium and Uue are the temporary systematic IUPAC name and symbol respectively, which are used until the element is discovered, confirmed, and a permanent name is decided upon.