In 1864, John Newlands ordered the periodic table by relative atomic
mass.
After doing so, he regarded that each element was similar to the element
8 places further on.
This is true for some many elements, such as Lithium and Sodium
The name comes from musical instruments like the piano. There are
8 different notes in a piano, and moving up 8 notes is called an octave (jan 1, 1864 – 23h 59min, dec 31, 1864 y)
Added to timeline:
Key Scientists in the construction of the periodic timetable
Chemistry homework for the 30/11/18 detailing the title
Date: