Covalent compound notes

1. a covalent bond between two atoms where the electrons forming the bond are unequally distributed.
5. the amount of energy required to break apart a mole of molecules into its component atoms.
8. are generally any chemical compounds that contain carbon
10. 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.
11. a chemical bond in which three pairs of electrons are shared between two atoms.
13. chemical substances being held together by attraction of atoms to each other through sharing, as well as exchanging, of electrons -or electrostatic forces.
15. a chemical rule of thumb that reflects observation that elements tend to bond in such a way that each atom has eight electrons in its valence shell, giving it the same electronic configuration as a noble gas.
16. is a chemical bond that involves the sharing of electron pairs between atoms.
18. a large molecule, or macromolecule, composed of many repeated subunits.
20. a type of bond that occurs when two atoms share a pair of electrons with each other.

2. composed of only two atoms, of the same or different chemical elements.
3. a very simplified representation of the valence shell electrons in a molecule.
4. a charged chemical species composed of two or more atoms
6. a group of atoms bonded together, representing the smallest fundamental unit of a chemical compound that can take part in a chemical reaction
7. a large molecule, or macromolecule, composed of many repeated subunits.
9. between two chemical elements involving four bonding electrons instead of the usual two.
12. a pair of valence electrons that are not shared with another atom in a covalent bond
14. a substance composed of exactly two different elements,
17. a model used in chemistry to predict the geometry of individual molecules from the number of electron pairs surrounding their central atoms.
19. a chemical bond in which one pair of electrons is shared between two atoms.