Question

which statement below accurately describes the contributions of thomson?
c discovered the existence of electrons
c proposed the modern atomic theory
c ancient greek philosopher who proposed that matter was continuous
c created the modern periodic table

Explanation:

• Discovered the evidence of electrons: J.J. Thomson conducted cathode - ray tube experiments. He found that cathode rays were composed of negatively - charged particles, which he named electrons.
• Proposed the modern Atomic Theory: This was John Dalton's work. Dalton's atomic theory stated that elements are made of atoms, atoms of the same element are identical, atoms combine in simple whole - number ratios to form compounds, etc.
• Ancient Greek philosopher who proposed that matter was continuous: This was not Thomson. Ancient Greek philosophers like Aristotle had ideas about continuous matter (the idea of the four elements: earth, air, fire, water in a continuous form).
• Created the modern periodic table: Dmitri Mendeleev is credited with creating the first widely recognized periodic table.

Answer:

discovered the evidence of electrons