Scientists look for a new thing.
It is a tiny piece of matter. We have not found it yet. It might be in the world. We want to find it. Can you help us look?
Scientists want to find a new thing.
It is called unbibium. We have not found it yet. It is not in nature. People have tried to make it in labs. They hit small parts together to make it. But they did not find any. Some people thought they found it in rocks. Other scientists checked and said no. It might be very hard to find.
It could be part of a special group. This group might stay together longer. We still want to find it.
Scientists are looking for a new element. It is called unbibium. Its symbol is Ubb. We have not found it yet. It does not exist in nature.
Some people thought they found it in thorium rocks. They said they found it in 2008. Other scientists checked this work. They used better tools. They did not find unbibium. Now, most experts think it is not in those rocks.
Making unbibium is very hard. Scientists try to make it in labs. They hit small parts of atoms together. This is called fusion. They hope to find an island of stability. This is a special place where superheavy elements might last longer.
One version of unbibium might have 306 protons and neutrons. It might have a magic number of neutrons. A magic number helps the atom stay together. Right now, there are no plans to make it. Scientists are working on other elements first. They want to find elements 119 and 120 first.
Scientists are searching for a new chemical element called unbibium. It is also known as element 122 or eka-thorium. Because no one has discovered it yet, it uses a placeholder name. Its temporary symbol is Ubb. We expect it to be part of a group called the superactinides. It would also be the fourth element in the 8th period of the periodic table.
Making unbibium is a very difficult task for scientists. They try to create it through a process called fusion-evaporation. This involves hitting a target with a beam of ions. In 1972, researchers at the Joint Institute for Nuclear Research tried this. In 1978, another team at the GSI Helmholtz Center tried it too. They used xenon-136 ions to hit an erbium target. Neither experiment found any atoms of unbibium.
In 2008, a scientist named Amnon Marinov made a big claim. He said his team found unbibium in natural thorium deposits. This would have been a huge discovery for science. However, other scientists did not believe the results. They used a better tool called accelerator mass spectrometry to check. This tool had 100 times more sensitivity than the first test. The new tests did not find any unbibium in the rocks.
Scientists hope to find an "island of stability" in the future. This is a special place where superheavy elements might last longer. One version of unbibium might be isotope 306Ubb. This isotope might have a magic number of 184 neutrons. A magic number helps the nucleus stay together for more time. Most superheavy elements decay very quickly, sometimes in microseconds. The island of stability could change how long they last.
Unbibium is a way for us to learn about the limits of matter. It is expected to act a bit like cerium or thorium. However, strange physics called relativistic effects might change its properties. These effects might change how its electrons are arranged. Right now, there are no immediate plans to make unbibium. Scientists are focusing on finding elements 119, 120, and 121 first. They need better machines to reach the next big discovery.
Unbibium is a hypothetical chemical element that scientists have not yet created. It is also known as element 122 or eka-thorium. Because it has not been officially discovered, it uses the temporary IUPAC name unbibium and the symbol Ubb. In the periodic table, unbibium is expected to be the fourth element of the 8th period. It would also be the second element of a group called the superactinides.
Researchers often study superheavy elements to find the "island of stability." This is a theoretical region where certain isotopes might last much longer than others. Unbibium is expected to fall within this range. Specifically, the isotope 306Ubb might be more stable because it is predicted to have a magic number of 184 neutrons. A magic number occurs when a nucleus has a specific amount of particles that helps it stay together.
Creating unbibium is a massive scientific challenge. Most attempts use a process called fusion-evaporation. In this method, scientists fire a beam of heavy ions at a target material. In 1972, researchers at the Joint Institute for Nuclear Research tried to create it using hot fusion. In 1978, a team at the GSI Helmholtz Center bombarded an erbium target with xenon-136 ions. Neither experiment succeeded in detecting any unbibium atoms.
In 2000, the GSI Helmholtz Center performed a similar experiment with much higher sensitivity. They used a calcium-48 beam and a californium-249 target. Even with this improved method, they did not find the element. These results show that making such heavy elements requires even better technology. Scientists hope to eventually reach a sensitivity of 1 femtobarn to get better results.
There was once a famous claim regarding unbibium in nature. In 2008, physicist Amnon Marinov claimed to find unbibium-292 in natural thorium deposits. This would have been the first new natural element found in 69 years. However, the scientific community was very skeptical of this claim. Later experiments used accelerator mass spectrometry, which is 100 times more sensitive, and they found nothing.
Chemically, unbibium is expected to behave somewhat like cerium or thorium. However, strange physics called relativistic effects might change its behavior. These effects can alter how electrons are arranged around the nucleus. For example, its electron configuration might be [Og] 7d1 8s2 8p1 instead of what its position in the g-block suggests. This makes the chemistry of superheavy elements very difficult to predict.
Future attempts to find unbibium may require entirely new methods. Some scientists suggest using multi-nucleon transfer reactions instead of fusion-evaporation. This is because as elements get heavier, they tend to undergo spontaneous fission. Spontaneous fission is when a nucleus splits apart on its own. This process becomes much more common for elements starting around atomic number 122.
Currently, there are no immediate plans to synthesize unbibium. Most research facilities are focusing on discovering elements 119, 120, and 121 first. To find unbibium, scientists may need to use a chromium beam with a californium target. This specific reaction could help reach the predicted magic number of 184 neutrons. Until then, unbibium remains a fascinating mystery of the periodic table.
Where will your curiosity go next?
🖼️ Images & Media (3)
More to explore
✨ What else?
Related topics you might enjoy
🔬 Go deeper
More advanced topics to explore
🪜 Step back
Simpler topics to build understanding
What is Nepedia?
A free, ad-free encyclopedia for children. Every article is written at five reading levels, so the same page works for a five-year-old and a fifteen-year-old — use the level switcher above to see this one change. No account needed to read.