Question

multiple - choice question
who first came up with the concept of the atom?
democritus
daltom
bohr
rutherford
rewatch

Explanation:

• Democritus, a Greek philosopher in the 5th century BCE, proposed the concept of the atom. He suggested that matter is composed of tiny, indivisible particles called atoms.
• Dalton (early 19th century) developed the modern atomic theory, but he built on earlier ideas.
• Bohr (early 20th century) proposed the Bohr model of the atom.
• Rutherford (early 20th century) conducted experiments leading to the nuclear model of the atom.

Answer:

Democritus