Noble gas aided in the development of a general understanding of atomic structure. In 1895, French chemist Henri Moissan attempted to form a reaction between fluorine, the most electronegative element, and argon, one of the noble gases, but failed. Scientists were unable to prepare compounds of argon until the end of the 20th century, but these attempts helped to develop new theories of atomic structure. Learning from these experiments, Danish physicist Niels Bohr proposed in 1913 that the electrons in atoms are arranged in shells surrounding the nucleus, and that for all noble gases except helium the outermost shell always contains eight
The Noble Sage Art Gallery writers and poets. They include: The Noble Sage Art Gallery The Noble Sage Art Collection is a contemporary art gallery in Belsize Park, North London. It was opened by Jana Manuelpillai in 2006. The gallery specialises exclusively in Indian, Sri Lankan and Pakistani contemporary art and represents over forty artists. The collection includes over 500 artworks, most of which are paintings, sculpture and works on paper from south Indian states of Tamil Nadu, Kerala and Karnataka. Artists shown at the gallery include: The Noble Sage holds regular screenings of art house films from the Indian Subcontinent. The Noble Sage has