The two strongest spectroscopic lines attributed to the unknown element nebulium were later found to correspond to forbidden magnetic dipole radiation from ions of this element.
The two strongest spectroscopic lines attributed to the unknown element nebulium were later found to correspond to forbidden magnetic dipole radiation from ions of this element. Weiszacker and Bethe hypothesized that nuclei of this element act as the third and final catalyst in a reaction sequence that is an alternative to the proton-proton chain for fusing hydrogen. Four ions of this element surround a silicon ion in the common mineral-forming silicate tetrahedron. FTP name this element whose diatomic form is the second-most abundant atmospheric component on Earth and whose triatomic form helps block UV rays.
The two strongest spectroscopic lines attributed to the unknown element nebulium were later found to correspond to forbidden magnetic dipole radiation from ions of this element.
{oxygen}