hellbrix Posted August 24, 2012 Posted August 24, 2012 (edited) hey guys , i have a really important assignment to do first of all , this is the table i need to solve with the solutions, ELEMENTS | SYMBOL |no. of electrons| " " protons |" " neutrons |atomic no. |atomic mass _______________________________________________________________________ Lithium Li | - | 3 | - | 3 | 7 Carbon - | - | 6 | - | 6 | 12 Chlorine - | - | 17 | - | 17 | 35 Oxygen - | 8 | - | 8 | 8 | - Flourine - | 9 | 9 | 10 | - | - please help me... if i might have copied it wrong not anyone can give solution correctly please help... Edited August 24, 2012 by hellbrix
imatfaal Posted August 24, 2012 Posted August 24, 2012 Wikipedia is gonna be your friend on this one - you won't get answers from this forum, just prods in the right direction 1. Copying/spelling Fluorine not Flourine - teachers always pick up on silly mistakes 2. The Periodic Table Hover over symbol (Li - Lithium) to get the name and and link to more details 3. Wikipedia has a page on each of the elements - such as this one for Carbon 4. No of Electron / No of Protons - read up a bit here Atom 5. No of Neutrons - read up on isotopes here Isotope and then look at each individual elements page Carbon Isotopes 6. Atomic Number and Atomic Mass - see relative atomic mass
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