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| Unit 3: Active Chemistry |
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| Elements are represented by symbols. The symbol is one, two, or three letters that represent the name. It’s easier to write O than to write oxygen. It’s easier to write H than to write hydrogen. The symbols come from many different sources. However, the same symbols are used for each element in all countries of the world. |
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| Name of Element |
Symbol |
| aluminum |
Al |
| bromine |
Br |
| calcium |
Ca |
| carbon |
C |
| chlorine |
Cl |
| copper |
Cu |
| gold |
Au |
| helium |
He |
| hydrogen |
H |
| iodine |
I |
| iron |
Fe |
| lead |
Pb |
| magnesium |
Mg |
| mercury |
Hg |
| neon |
Ne |
| nickel |
Ni |
| nitrogen |
N |
| oxygen |
O |
| phosphorus |
P |
| potassium |
K |
| silicon |
Si |
| sodium |
Na |
| sulfur |
S |
| tin |
Sn |
| zinc |
Zn |
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Activity Page 5 
