Chemboggle

1. Group of the same type of orbitals
3. Atoms of an element with a different number of neutrons
5. A species that is a proton acceptor
8. A species that is a proton donor
9. Oxidation and reduction
13. A measure of the tendency of an atom to attract a bonding pair of electrons
14. A hydrocarbon with single bonds only
16. The opposite of a condensation reaction
18. The amount of a specified substance in a unit amount of another

2. Simplest whole number ratio of atoms in an element
4. The acidity of a solution
6. Measure of pressure
7. (s) (aq) (g)
10. Loss of electrons
11. A substance that increases the rate of a chemical reaction without being used up in the process
12. Molar relationship between quantities of substances taking part in a reaction
15. A reaction that gives off heat
17. Measure of the disorder of a system