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

Forget 10 Downing Street or 1600 Pennsylvania Avenue, the most prestigious address in the universe is number one in the periodic table, hydrogen. In science, simplicity and beauty are often equated - ...

Each square in the table contains an element symbol of one or two letters ... A zig-zag line divides them. In most periodic tables hydrogen (H) is shown separately but is still classified as ...