Across
- 1. compound a chemical bond that involves the sharing of electron pairs between atoms.
- 4. a large molecule, or macromolecule, composed of many repeated subunits
- 5. Structure a very simplified representation of the valence shell electrons in a molecule.
- 7. bond a type of bond that occurs when two atoms share a pair of electrons with each other
- 10. rule elements tend to bond in such a way that each atom has eight electrons in its valence shell
- 11. an electrically neutral group of two or more atoms held together by chemical bonds
- 12. ion a charged chemical species composed of two or more atoms covalently bonded
- 15. bond a covalent bond between two atoms where the electrons forming the bond are unequally distributed
- 17. element all gases, and they form molecules because they don't have full valence shells on their own.
- 18. bond a chemical bond between two atoms involving six bonding electrons instead of the usual two in a covalent single bond.
Down
- 2. a chemical property that describes the tendency of an atom to attract a shared pair of electrons towards itself.
- 3. theory Valence shell electron pair repulsion theory
- 6. bond a single bond is a chemical bond between two atoms involving two valence electrons.
- 8. formula a set of chemical symbols showing the elements present in a compound and their relative proportions, and in some cases the structure of the compound.
- 9. energy is the measure of bond strength in a chemical bond.
- 13. compound generally any chemical compounds that contain carbon.
- 14. pair a pair of valence electrons that are not shared with another atom in a covalent bond
- 16. compound a substance composed of exactly two different elements, which are substances that cannot be simplified further by chemical means.
- 17. bond a chemical bond between two chemical elements involving four bonding electrons instead of the usual two.