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Many hospitals, and some doctors\' offices, use radioisotopes for diagnosis and treatment, or in palliative care (relief of symptoms such as pain). Some radioisotopes used in medicine are listed below. Write the isotope symbol for each radioisotope. Replace the question marks with the proper integers. Replace the letter X with the proper element symbol.a) Iodine-131:b) Iridium-192:c) Samarium-153:

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Answer:

For a: The isotopic symbol of the above atom will be [tex]_{53}^{131}\textrm{I}[/tex]

For b: The isotopic symbol of the above atom will be [tex]_{77}^{192}\textrm{Ir}[/tex]

For c: the isotopic symbol of the above atom will be [tex]_{62}^{153}\textrm{Sm}[/tex]

Explanation:

The isotopic representation of an atom is: [tex]_Z^A\textrm{X}[/tex]

where,

Z = Atomic number of the atom

A = Mass number of the atom

X = Symbol of the atom

  • For a:  Iodine-131

Atomic number of iodine = 53

Mass number of iodine = 131

Symbol of iodine = I

The isotopic symbol of the above atom will be [tex]_{53}^{131}\textrm{I}[/tex]

  • For b:  Iridium-192

Atomic number of iridium = 77

Mass number of iridium = 192

Symbol of iridium = Ir

The isotopic symbol of the above atom will be [tex]_{77}^{192}\textrm{Ir}[/tex]

  • For c:  Samarium-153

Atomic number of samarium = 62

Mass number of samarium = 153

Symbol of samarium = Sm

The isotopic symbol of the above atom will be [tex]_{62}^{153}\textrm{Sm}[/tex]

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