| The small number to the right of the chemical symbol tells how many atoms of each element are in the molecule. |
| Identify and write chemical symbol or molecular formula of common elements or compounds. |
| Lead is not a compound, but an element whose chemical symbol is Pb, taken from the Latin name for lead. |
| Figure 1.1 lists the radioisotopes associated with the uranium and thorium radioactive decay series and potassium, and also gives the chemical symbol for each element and isotope. |
| Tin is a soft, white, lustrous metal with an atomic weight of 118.7 and the chemical symbol Sn after its Latin name, Stannum. |
| If a chemical symbol is printed beneath the symbol mark, this chemical symbol means that the batteries contains a heavy metal at a certain concentration. |
