Across
- 2. a bond where one pair of electrons is shared between two atoms
- 4. a subatomic particle with a negative charge
- 6. the outer layer of an atom
- 7. a central atom with four substituents
- 9. a theory stating that pairs of electrons will repel each other shaping molecular geometry
- 11. a different bond where two pairs of electrons are shared between two atoms
- 12. two e- occupying the same orbital in an atom or molecule
Down
- 1. a way of representing covalent bonds
- 3. what is formed when two atoms share electrons
- 5. a substance made up of two or more different elements
- 8. a pure substance consisting of only one type of atom
- 10. a pair of valence electrons not shared with an atom