Question

The octaves of Newland begin with _______and end with ______?

• A. H; Th
• B. Li; Na
• C. He; Ar
• D. Mg; Ca

Answer 1

Answer:

A. H; Th

• Dobereiner’s triads and Newland’s law of octaves were early attempts at classifying elements into groups based on their properties.

• Since many new elements were discovered over the course of the 18th and 19th centuries, the broad classification of elements into metals and non-metals became inefficient.

• Several experiments were conducted in order to identify elements with similar properties and group them together

• Newland's Law of Octaves states that every eighth element has similar properties when arranged in increasing atomic mass.

• The octaves start with Hydrogen (H) and end with Thorium (Th).