Johan Newlands an English chemist has classified 56 elements into 11 groups based on the physical properties and proposed the Law of Octaves which statesthat every eight elements repeated its physical and chemical properties. Newlands periodic table:
H
F
CI
Co/Ni
Br
Pd
I
Pt/Ir
Li
Na
K
Cu
Rb
Ag
Cs
Tl
GI
Mg
Ca
Zn
Sr
Cd
Ba/V
Pb
BO
Al
Cr
Y
Ce/La
U
Ta
Th
C
Si
Ti
In
Zr
Sn
W
Hg
N
P
Mn
As
Di/Mo
Sb
Nb
Bi
O
S
Fe
Se
Ro/Ru ;
Te;
Au
Os
In a periodic table, each row of elements consists of total seven elements and the eighth element falls under the first element.
In the first column lithium (Li) is the first element and sodium (Na) is the eighth element.