The atoms of other elements, however, like hydrogen ... a symbol stands for. For example, C stands for carbon and Li stands for lithium. But sometimes the symbol comes from a name for the element ...

Symbol equations are a quick way of representing chemical reactions ... acid is a compound containing sulfur, oxygen, and hydrogen. Its formula is written: H2SO4. So we write Mg plus H2SO4.

The term “hydrogen economy” refers to the vision of using hydrogen as a clean, low-carbon energy resource to meet the world’s energy needs, replacing traditional fossil fuels in various applications, ...

And generations of children have sung the words, "hydrogen and helium ... patterns in the properties of the elements, which give the periodic table its name. Elements with similar properties ...