Atoms&Reactions

Atoms&Reactions

1. Atomic Structure

   • Protons +1 charge
   • Electrons -1 charge
   • Nuetron 0 charge

2. Isotopes =Atoms of the same element with the same number of protons but different number of neutrons.

   • RELATIVE ISOTOPIC MASS= mass on an atom of an isotope compared with the mass of 1/12th an atom of c12.

3. Moles

   • =Amount of substance
     • Avagdro's constant- 6.02x10(23)
   • Molar Mass = mass of substance in g/mol
     • Molar Volume= Volume per mole of gas