Question

Which statement below is false regarding atoms and elements?(1 point)

All elements are composed of atoms.

All atoms have subatomic particles.

All atoms of an element are identical.

All atoms are only composed of electrons.

Answer 1

Two of the statements are false:

- "All atoms of an element are identical." — False. Atoms of the same element can be isotopes (same proton number but different numbers of neutrons), so they differ in mass and some properties.
- "All atoms are only composed of electrons." — False. Atoms contain protons and (usually) neutrons in the nucleus as well as electrons.

The first two statements are true: elements are made of atoms, and atoms have subatomic particles.