There are 118 elements in the periodic table, each with a unique symbol and atomic number. Symbol: A one or two-letter abbreviation used to represent the element. Atomic number: The number of ...

It uses chemical symbols from the periodic table to represent the elements involved ... The atmosphere is made up of around 78% nitrogen (N₂) and 21% oxygen (O₂). Both of these are present ...

What element is N? N is the abbreviation for Nitrogen, which makes up about 78 ... in a very small part of the atmosphere.