Dalton described atoms as small spheres that could not be divided into anything smaller. The correct option is B.
An atom is a matter unit of matter that truly represents a chemical element. An atom is made up of a central nucleus encircled by one or more electrons.
Each electron carries a negative charge. The nucleus is positively charged and contains one or more protons and neutrons, which are relatively heavy particles.
In 1804 John Dalton discovered atoms. He believed they were the tiny particles of matter that could not be broken down further. He imagined them to be solid, hard spheres.
Democritus was a Greek philosopher who envisaged the word atomos, that also means "uncuttable." As a result, all matter, he explained, was eventually reducible to discrete, small particles or atoms.
Thus, the correct option is B.
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