Scientific Theory of Atoms

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Across
  1. 2. A state of matter that has no definite shape but has a definite volume.
  2. 5. To move back and forth slightly
  3. 7. A substance that contains one kind of atom and cannot be broken down into a simpler form.
  4. 8. A theory of the nature of matter: all material substances are composed of minute particles or atoms of a comparatively small number of kinds and all the atoms of the same kind are uniform in size, weight, and other properties.
  5. 9. A positively charged particle that is found in the nucleus of an atom.
  6. 11. The central core of an atom that contains protons and neutrons
  7. 12. The basic particle from which all elements are made.
Down
  1. 1. Negatively charged particles that move around the outside of the nucleus.
  2. 3. A state of matter that has a definite shape and a definite volume.
  3. 4. A state of matter with no definite shape or volume.
  4. 6. The system of electrons surrounding the nucleus of an atom
  5. 10. A particle in the nucleus of the atom with no electrical charge.