Newlands Law of Octaves - Periodic Classification of Elements, Class 10, Science Video Lecture

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Newlands octaves Newlands a British
chemist arranged all the known 56
elements in increasing order of their
atomic masses and found that every
eighth element had properties similar to
that of the first as in case of the
octaves of music
hence this classification was known as
Newlands octaves Newlands law states
that when the elements are arranged in
an increasing order of their atomic
masses the properties of the eighth
element are similar to the first
some features of Newlands Table one New
Orleans law of octaves was applicable
only up to calcium out of total 56
elements known at that time to after
calcium every eighth element did not
possess properties similar to that of
the first three Newlands assumed that
only fifty six elements existed but
later several elements were discovered
for to fit the existing elements
Newlands placed two elements in the same
position which differed in their
properties five this periodic table did
not include noble or inert gases because
they were not discovered at that time
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