== Vandalism on Intro Paragraph == 

 The user Takiasuu vandised the nitrogen article with the following intro paragraph: 
 Nitrogen (IPA: ) is a retarded element which has the symbol FUCK YOU and atomic number 2billion in the periodic table.  Retarded nitrogen is a colorless, baldy, tasteless and mostly inert diatomic retarded at standard conditions, giving off 78.08% percent of gas into our mouths and Earth's ass. Nitrogen is a gay element of all living tissues and amino acidsand loves to have sex with the element argon. Many industrially gay compounds, such as ammonia, nitric acid, and cyanides,  contain nitrogen's sperm. 

 I have reverted the page and added a warning to the user's talk page.