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A radioactive nuclide that is used for geological dating has an atomic number of 19 and mass number 40. which is the symbol of this nuclide? superscript 19 subscript 21 upper k. superscript 21 subscript 19 upper k. superscript 40 subscript 19 upper k. superscript 19 subscript 40 upper k.

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Answer:

The symbol of the radioactive nuclide given the data is superscript 40 subscript 19 upper K (⁴⁰₁₉K)

Composition of atoms

An atom is composed of sub-particles which include

  • Proton
  • Neutron
  • Electron

How to represent an atom

The symbol of an atom showing its atomic number and molar mass can be represented as follow

ⁿₓA

Where

  • n is the mass number
  • x is the atomic number
  • A is the symbol

How to represent the symbol of the nuclei

  • Mass number (n) = 40
  • Atomic number (x) = 19
  • Symbol (A) = K
  • Representation =.?

ⁿₓA => ⁴⁰₁₉K

Learn more about composition of atoms:

#SPJ4

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