Symbol: A one or two-letter abbreviation ... mnemonics to help you remember the first 20 elements of the periodic table: H - Hydrogen He - Helium Li - Lithium Be - Beryllium ...

Although it is the second question on our quiz of the periodic table of elements, H is the first element on the periodic ...

It uses chemical symbols from the periodic table to represent the elements ... We know this because the hydrogen symbol has a subscript three after it, whereas the nitrogen symbol has no number ...