The nitrogen molecule is composed of two nitrogen atoms joined by a triple covalent ... breaking of this bond and the addition of three hydrogen atoms to each nitrogen atom. Microorganisms that ...

The formula is H 2 O so the dot and cross diagram includes two H atoms and one O atom ... of two nitrogen atoms joined together. Nitrogen atoms can form three covalent bonds, so a triple bond ...

The dot and cross diagram shows that a water molecule is made up of one oxygen atom ... up of two nitrogen atoms joined together. Nitrogen atoms can form three covalent bonds, so a triple bond ...