JKSSB Mock Tests

In 1866, John Newlands, an English scientist, arranged the then known elements in the order of It is known as 'Newlands' Law of Octaves'.

A. decreasing atomic masses
B. decreasing atomic number
C. increasing atomic masses
D. increasing atomic number
Answer: Option C
Solution (By JKSSB Mock Tests Team)
In 1865-1866, British chemist John Newlands historically attempted to classify the known elements by arranging them in an order of strictly increasing atomic mass. He observed that every eighth element exhibited highly similar properties, famously dubbing this periodic rhythm the 'Law of Octaves.'
This Question Belongs to: General science Chemistry set 1
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