Question

what scientist noticed that certain groups of elements had similar properties? view available hint(s) rutherford thomson mendeleev dalton

Explanation:

• Rutherford is known for his work on the atomic nucleus (gold - foil experiment).
• Thomson discovered the electron.
• Dalton proposed the atomic theory.
• Mendeleev noticed that certain groups of elements had similar properties and created the first periodic table based on this observation.

Answer:

C. Mendeleev