Across
- 2. A type of covalent bond that forms when electrons are NOT shared equally.
- 5. A measurement of an atom’s ability to steal electrons from other atoms.
- 6. A bond that results from the SHARING of valence electrons.
- 8. Ionic bonds form as the result of an electron ________ between a metal ion and a nonmetal ion.
- 9. Covalent bonds form when two nonmetal elements _______ electrons.
- 12. London ________ Forces form between molecules of nonpolar substances.
- 13. An attractive force that holds together the atoms, ions, or groups of atoms in a molecule or compound.
- 16. A group of atoms that are held together by covalent bonds.
- 18. Neutrons have what kind of charge?
- 19. Uses chemical symbols to represent the atoms of the elements and their ratios in a chemical compound.
- 20. Protons have what kind of charge?
Down
- 1. The electrons in the outer energy level of an atom.
- 3. This rule states that atoms tend to gain, lose, or share valence electrons so that each atom has a full set of eight.
- 4. A substance that cannot be broken down into a simpler substance by ordinary chemical changes.
- 7. A type of covalent bond that forms when electrons are shared equally.
- 10. Water has many unique properties due to the ________ bonds that form between water molecules.
- 11. A substance made up of two or more different types of atoms bonded together.
- 14. The force of attraction (bond) between oppositely charged ions in a compound.
- 15. The _______ Table lists all known elements.
- 17. Electrons have what kind of charge?
