Question

which scientist established the law of octaves?
antoine lavoisier
dmitri mendeleev
henry moseley
john newlands

Explanation:

The law of octaves was established by John Newlands. He noticed that when the elements were arranged in order of increasing atomic mass, every eighth element had similar properties, similar to the notes in an octave in music. Antoine Lavoisier is known for contributions to combustion and naming elements. Dmitri Mendeleev is famous for creating the periodic table. Henry Moseley's work was on atomic numbers.

Answer:

D. John Newlands