Across
- 3. Tells the shape of the electron cloud.
- 5. The order of elements based on their atomic number.
- 10. The number of protons in an atom, defining its identity.
- 12. The outermost shell of an atom where electrons are located.
- 13. Forces that determine the behavior of elements.
- 14. Atoms with 26 protons.
- 15. Name of the elements in group 2 of the periodic table.
- 16. Distance between the two crests
- 17. Energy required to remove an electron from an atom.
- 18. The force that holds atoms together in a compound
- 19. Bond formed by the transfer of electrons between atoms.
Down
- 1. The number of valence electrons determines an element's ___.
- 2. The number of electrons in the outermost shell of an atom.
- 4. The unique arrangement of atoms in a molecule.
- 6. Who discovered atoms in the year 400 B.C?
- 7. Basic building blocks of matter, composed of protons, neutrons, and electrons.
- 8. Number of waves passing through a single point in one second.
- 9. Colors of light that we can see with our eyes.
- 11. Sharing of electrons between atoms forms this type of bond.
- 20. A bond formed by the attraction between positively and negatively charged ions.