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2. Prices of chemical elements - Wikipedia

   en.wikipedia.org/wiki/Prices_of_chemical_elements

   This is a list of prices of chemical elements.Listed here are mainly average market prices for bulk trade of commodities. Data on elements' abundance in Earth's crust is added for comparison.

3. Explainer-What is helium and why is it used in rockets? - AOL

   www.aol.com/news/explainer-helium-why-used...

   Helium is inert - it does not react with other substances or combust - and its atomic number is 2, making it the second lightest element after hydrogen. Rockets need to achieve specific speeds and ...

4. Cadmium-free quantum dot - Wikipedia

   en.wikipedia.org/wiki/Cadmium-free_quantum_dot

   Recently, Cd-free QDs have also shown great potential in the fabrication of new generation of solar cells and display applications. [ 13 ] [ 14 ] [ 15 ] Quantum dots (QDs) have been a main focal point in the material science industry in the recent years, allowing scientists and engineers to manipulate and test the properties of these nanoscale ...

5. Helium-10 - Wikipedia

   en.wikipedia.org/?title=Helium-10&redirect=no

   Isotopes of helium#Heavier helium isotopes From a cross-project redirect : This is a redirect from a title linked to an item on Wikidata. The Wikidata item linked to this page is helium-10 (Q12624964) .

6. Noble gas - Wikipedia

   en.wikipedia.org/wiki/Noble_gas

   Helium is the most common element in the universe after hydrogen, with a mass fraction of about 24%. Most of the helium in the universe was formed during Big Bang nucleosynthesis, but the amount of helium is steadily increasing due to the fusion of hydrogen in stellar nucleosynthesis (and, to a very slight degree, the alpha decay of heavy ...

7. Liquid helium - Wikipedia

   en.wikipedia.org/wiki/Liquid_helium

   Liquid helium is a physical state of helium at very low temperatures at standard atmospheric pressures.Liquid helium may show superfluidity.. At standard pressure, the chemical element helium exists in a liquid form only at the extremely low temperature of −269 °C (−452.20 °F; 4.15 K).

8. Helium Network - Wikipedia

   en.wikipedia.org/wiki/Helium_Network

   The Helium Network is a decentralized wireless Internet of things (IoT) network using the LoRaWAN system, tied to the cryptocurrency Helium Network Token (symbol HNT). [1] Nodes on the network are generally owned and placed by individuals in their homes or offices, and they are rewarded for their participation in the network in payments of HNT ...

9. Lifting gas - Wikipedia

   en.wikipedia.org/wiki/Lifting_gas

   Therefore, the amount of mass that can be lifted by helium in air at sea level is: (1.292 - 0.178) kg/m 3 = 1.114 kg/m 3. and the buoyant force for one m 3 of helium in air at sea level is: 1 m 3 × 1.114 kg/m 3 × 9.8 N/kg= 10.9 N. Thus hydrogen's additional buoyancy compared to helium is: 11.8 / 10.9 ≈ 1.08, or approximately 8.0%