1. The calculation indicated that the detected noble gas originated from North Korea. 2. Perhaps I would also create a separate section about noble gas compounds. 3. In fact, before the 1960s, no noble gas compounds had been synthesized. 4. Until the 1960s, no chemical bond with a noble gas was known. 5. According to state-of-the-art DFT calculations, noble gas endofullerenes should demonstrate unusual polarizability. 6. One of the important fission products is krypton-90, a radioactive noble gas . 7. Argon is a noble gas that is part of the Martian atmosphere. 8. Since then, chemists have made extensive efforts to form other noble gas fluorides. 9. The halogen is normally mixed with a noble gas , often krypton or xenon. 10. Heavier noble gas atoms will tend to displace the lighter atoms.
