Question

Joseley,

Part A
Before Mendeleev, Newlands observed a distinct pattern in the elements and proposed the law of octaves. What were his
conclusions?

Answer 1

John Newlands observed a distinct pattern in the elements and proposed the Law of Octaves, stating that every eighth element had similar properties.

Step-by-step explanation:

John Newlands was an English chemist who observed a distinct pattern in the properties of elements. He proposed the Law of Octaves, which stated that every eighth element in the periodic table had similar properties. His conclusions were based on arranging the elements in order of increasing atomic weight and noticing that the properties repeated every eighth element.

Learn more about The Law of Octaves in chemistry