Multiple choice

Atom is the ________part of an element.

  1. biggest

  2. largest

  3. smallest

  4. None of the above

Reveal answer Fill a bubble to check yourself
C Correct answer
Explanation

Atoms are the smallest particles that retain the chemical properties of an element. They consist of electrons orbiting a nucleus containing protons and neutrons. Atoms combine to form molecules but are themselves the fundamental units of matter.