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Unformatted text preview: -Atomic number or the proton number is called z-The number of protons and neutrons in an element is mass number a.-The neutron number is calculated by using A-Z o Naming Chemical Elements A Z E Example with element : 197 79 AU 2 non metals = molecular compound A metal + a non-metal = ionic compound For molecular mass you just get the unit mass given and multiply by that by the amount of moles so for water it would be 16 + 1.01 x 2 Avogadros constant= 6.02 x 10 23 HOBRFNCL P 4 S 8 Mono, di , tri, tetra, penta, hexa, hepta, octa, nona, deca In limiting reaction use one with less amount of moles...
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- Spring '08
- N. MCKAY