This is what you will find it toothpaste and drinking water.
The other one is elemental fluorine, a highly reactive, poisonous, pale yellow gas.
In such cases subjective element cannot be ruled out.
But, for a single culture site the method is quite reliable.
It is so reactive that it hardly ever appears in its elemental form in nature.
In such an arrangement, three gold atoms are suspended in a plane around the nitrogen atom, while the other gold atoms sit above and below this plane.Back a few decades ago, when I was in grammar school, we were given a fluoride rinse after lunch that tasted as good as fluoride should.As horrible as it was to taste, perhaps it prevented me from getting cavities.CHEMISTS in West Germany have discovered a compound of nitrogen which breaks one of the fundamental rules of chemistry.The molecule has five bonds and is ‘an extremely stable species’.The inability to control for variables which affect protein decay is the major problem limiting the use of nitrogen as a chemical method of dating archaeological bone specimens.