The name Nerys is of Welsh origin. The meaning of Nerys is lady modern. Nerys is generally used as a girl's name. It consists of 5 letters and 2 syllables and is pronounced Ne-rys.
The size of a phosphorus atom also interferes with its ability to form double bonds to other elements, such as oxygen, nitrogen, and sulfur. As a result, phosphorus tends to form compounds that contain two P-O single bonds where nitrogen would form an N=O double bond.Nitrogen forms the nitrate, NO 3 - , ion, for example, in which it has an oxidation number of +5.he chemistry of nitrogen is dominated by the ease with which nitrogen atoms form double and triple bonds. A neutral nitrogen atom contains five valence electrons: 2 s 2 2 p 3.
Methemoglobinemia is the most significant health problem associated with nitrate in drinking water. Blood contains an iron-based compound called hemoglobin, which carries oxygen. When nitrite is present, hemoglobin can be converted to methemoglobin, which cannot carry oxygen.his bulletin focuses on the health effects of nitrate in drinking water, and another bulletin in this series (Fact sheet 400.04, Groundwater: What It Is and How to Protect It), addresses ways of protecting the quality of groundwater supplies.