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?

asked Feb 2, 2017 46.3k views

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4 votes

Answer:

40/19

Step-by-step explanation:

Baramin answered Feb 4, 2017

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4 votes

its D 19/40 K ...............................................

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