Ion Calculations for Iron Element
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
Symbol
Electron
Configuration
Electrons/Level
+3
Calculating Number of Protons
Atomic
Number
Atomic Number for an
atom that is an ion =
# of Protons
26 +2
Fe
Iron
55.845
2-8-14-2
+3
Calculating Number of Electrons
Atomic
Number
Atomic Number for an
atom that is an ion =
# of Protons
26 +2
Fe
Iron
55.845
2-8-14-2
+3
# of electrons =
Protons – charge
Ex. 26-(+2) = 24
26 +2
Fe
Iron
55.845
2-8-14-2
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
26 +2
Fe
Iron
55.845
2-8-14-2
+3
Isotope Name
Element Name followed by hyphen and
then Mass Number
ex. Iron - 56
26 +2
Fe
Iron
55.845
2-8-14-2
+3
Isotope Notation
m = mass number: # of
Protons + Neutrons
p = Atomic Number: #
of protons
X = symbol of element
26 +2
Fe
Iron
55.845
2-8-14-2
+3
Ex =
Fe
56
26
c
c = charge of element
+2
Calculating Charge
Charge = Protons – Electrons
Ex. 26 – 24 = +2
26 +2
Fe
Iron
55.845
2-8-14-2
+3
Final Answers for Iron
Learn how to calculate the particles for an ion of iron (Fe) using the periodic table, including the number of protons, electrons, neutrons, and the mass number. Understand the notation of isotopes and how to determine the charge of an ion. Get the final answers for the Iron isotope with atomic number 26 and mass number 56.
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Presentation Transcript
Representations from the Periodic Table Oxidation States Atomic Number 26 +2 +3 Fe Iron 55.845 2-8-14-2 Symbol Name Atomic Mass Electron Configuration Electrons/Level
Calculating Number of Protons Atomic Number 26 +2 +3 Fe Iron 55.845 2-8-14-2 Atomic Number for an atom that is an ion = # of Protons
Calculating Number of Electrons Atomic Number # of electrons = Protons charge Ex. 26-(+2) = 24 26 +2 +3 Fe Iron 55.845 2-8-14-2 Atomic Number for an atom that is an ion = # of Protons
Calculating Number of Neutrons 26 +2 Fe Iron 55.845 2-8-14-2 +3 Neutrons = Mass Number Atomic Number If Most Common Isotope - Round Atomic Mass to nearest whole number so 56 AMU
Calculating Mass Number 26 +2 Mass Number = Sum of the protons and neutrons +3 Fe Iron 55.845 2-8-14-2
Isotope Name 26 +2 Element Name followed by hyphen and then Mass Number ex. Iron - 56 +3 Fe Iron 55.845 2-8-14-2
Isotope Notation m = mass number: # of Protons + Neutrons c = charge of element 26 +2 m c X +3 Fe Iron 55.845 2-8-14-2 p X = symbol of element p = Atomic Number: # of protons 56 +2 Ex = Fe 26
Calculating Charge 26 +2 Charge = Protons Electrons Ex. 26 24 = +2 +3 Fe Iron 55.845 2-8-14-2
Final Answers for Iron Element / Symbol Isotope Name Isotope Notation Atomic Number Protons (p+) Neutrons (n0) Electrons (e-) Mass Number 56 Fe+2 26 Iron Fe Iron-56 26 26 30 24 56
