Question

which is a component of john daltons atomic theory?
the ratio of atoms in a compound can vary.
the atoms of a single element differ.
an atom is a small particle that cannot be broken down.
atoms of different elements can be identical.

Explanation:

• John Dalton's atomic theory states that atoms are indivisible and indestructible (cannot be broken down) at the time of his theory.
• The ratio of atoms in a compound is fixed, so the first option is wrong.
• Atoms of a single element are identical, so the second option is wrong.
• Atoms of different elements are different, so the fourth option is wrong.

Answer:

C. An atom is a small particle that cannot be broken down.