Keywords: Sodium Alternative (5941078178).jpg Sodium-like tungsten ions blue are far smaller than neutral sodium atoms orange the ion's 11 electrons are pulled in very tightly by the 74 protons in the tungsten nucleus making their energy jumps far more expensive than in neutral sodium and causing them to emit high-energy ultraviolet wavelengths of light rather than visible light as is the case with ordinary sodium Credit NIST Disclaimer Any mention of commercial products within NIST web pages is for information only; it does not imply recommendation or endorsement by NIST Use of NIST Information These World Wide Web pages are provided as a public service by the National Institute of Standards and Technology NIST With the exception of material marked as copyrighted information presented on these pages is considered public information and may be distributed or copied Use of appropriate byline/photo/image credits is requested https //www flickr com/photos/usnistgov/5941078178/ Sodium Alternative 2009-09-08 12 34 https //www flickr com/people/63059536 N06 National Institute of Standards and Technology PD-USGov National Institute of Standards and Technology https //flickr com/photos/63059536 N06/5941078178 2016-09-07 02 11 02 United States Government Work Uncategorized 2016 December 20 |