| A | B |
|---|
| hydrocarbon | saturated or unsaturated |
| sodium | soft metal in table salt |
| negative | charge of an electron |
| silicon dioxide | chemical name of sand |
| Rutherford | discovered the proton |
| silver | produced when copper reacts with silver nitrate |
| none | charge of neutrons |
| acid | produces hydronium ions |
| electron cloud | model of electrons moving freely |
| positive | proton charge |
| seven | energy levels |
| exothermic | reaction releasing heat or light |
| soap | example of a base |
| increases | ionization energy left to right |
| Chadwick | discovered the neutron |
| radon | noble gas in 6th row |
| coefficients | used to balance equations |
| base | produces hydroxide ions |
| silicons | metalloid element in semiconductors |
| strong force | holds nucleus together |
| mercury | liquid metal |
| catalyst | speeds up a reaction |
| fission | splitting a nucleus |
| periodic table | list of all elements and atomic numbers |
| halogens | antiseptic group |
| aromatic ring | benzene |
| two | alkaline earth metals loose ___electrons |
| thirty two | electrons in the 4th energy level |
| one | halogens gain ____ electrons |
| valence | outermost electrons |
| metalloids | stair-step elements |
| alkynes | triple bond hydrocarbons |
| salt and water | products of a neutralization reaction |
