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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?

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 class=
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 class=
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 class=
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 class=

Respuesta :

pmayl
The mass number goes on top, and the atomic number goes on bottom. 
Therefore, the answer is C:
40
     K
19

solsanchezxo

Answer:

C. 40/19 K

Explanation:

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