Question

who described atoms as small spheres that could not be divided into anything smaller?
bohr
dalton
rutherford
thomson

Explanation:

John Dalton proposed the atomic theory where atoms were considered as indivisible, hard spheres (small spheres that couldn't be divided into smaller parts). Bohr's model involved electrons in orbits, Rutherford discovered the nucleus (showing atoms have a central part and are divisible), and Thomson discovered electrons (proving atoms are divisible).

Answer:

B. Dalton