In 1866, English scientist John Newlands arranged the then known elements in the order of _________. This is called "Newlands' Law of Octaves".
Show answer & explanation
Correct answer: D
Explanation
The correct answer is opton 4 i.e. increasing atomic masses.
- John Newlands' work was significant in the history of chemistry for introducing the concept of periodicity in elemental properties. His observation of the repeating pattern in elements' properties was a precursor to the modern periodic law, which states that elements are arranged in the periodic table based on their atomic numbers rather than atomic masses.
- John Newlands' Law of Octaves was an early attempt to classify elements and identify periodic trends in their properties. Despite its limitations, it was a pioneering contribution to the field of chemistry and paved the way for future advancements in the understanding of elemental relationships.