Question

Question: Who invented the periodic table?​

Answer 1

Answer:

John Newlands

British chemist John Newlands was the first to arrange the elements into a periodic table with increasing order of atomic masses. He found that every eight elements had similar properties and called this the law of octaves

Answer 2

Answer:

Dmitri Mendeleev

Explanation:

He arranged the elements in eight groups but left no gaps for undiscovered elements. In 1869, Russian chemist Dmitri Mendeleev created the framework that became the modern periodic table, leaving gaps for elements that were yet to be discovered.