In chemistry, John Newlands (1837-1898) was and English chemist noted for his 1860s periodic table investigations.
Overview
In 1863, Newlands began to investigate atomic relationships among the elements, especially in bromine, chlorine, and iodine series. [1]
In 1864, Newlands arranged about 60 known elements in order of atomic weights and observed similarities between the first and ninth elements, the second and tenth elements etc.; he proposed the 'law of octaves'. This was the forerunner to the notion of “periods”. [2]
The following is an 1866 version of Newlands periodic table: (Ѻ)
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See also
● Henry Roscoe | Human periodic table analogy
References
1. Bray, Henry T. (1910). The Living Universe (pgs. 163). Truro Publishing Co., 1920.
2. History of the periodic table – Ausetute.com.au.
External links
● John Newlands (chemist) – Wikipedia.
