Calculating Particles for an ion. Representations from the Periodic Table 26 +2 Fe Iron 55.845 2-8-14-2 Oxidation States Name Atomic Mass Atomic Number.

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Presentation transcript:

Calculating Particles for an ion

Representations from the Periodic Table Fe Iron Oxidation States Name Atomic Mass Atomic Number Symbol Electron Configuration Electrons/Level +3

Calculating Number of Protons Atomic Number Atomic Number for an atom that is an ion = # of Protons Fe Iron

Calculating Number of Electrons Atomic Number Atomic Number for an atom that is an ion = # of Protons Fe Iron # of electrons = Protons – charge Ex. 26-(+2) = 24

26 +2 Fe Iron Calculating Number of Neutrons If Most Common Isotope - Round Atomic Mass to nearest whole number so 56 AMU Neutrons = Mass Number – Atomic Number +3

Calculating Mass Number Mass Number = Sum of the protons and neutrons Fe Iron

Isotope Name Element Name followed by hyphen and then Mass Number ex. Iron Fe Iron

Isotope Notation X m p m = mass number: # of Protons + Neutrons p = Atomic Number: # of protons X = symbol of element Fe Iron Ex = Fe c c = charge of element +2

Calculating Charge Charge = Protons – Electrons Ex. 26 – 24 = Fe Iron

Element / Symbol Isotope Name Isotope Notation Atomic Number Protons (p + ) Neutrons (n 0 ) Electrons (e - ) Mass Number Iron Fe Iron Fe Final Answers for Iron