Question

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

Explanation:

John Dalton's atomic theory proposed that atoms are indivisible and indestructible, and he visualized them as small, hard spheres. Bohr proposed the planetary model of the atom, Rutherford discovered the nucleus, and Thomson discovered the electron (showing atoms are divisible). So Dalton is the one who described atoms as small spheres that couldn't be divided.

Answer:

B. Dalton