Problem: The table below gives the number of protons (p) and neutrons (n) for four isotopes.(i)(ii)(iii)(iv)p19192020n19211920Write the symbol for the isotope (ii).

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We’re being asked to determine the symbol for isotope (ii).

Recall that the symbol for an element or ion is as follows:



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Problem Details

The table below gives the number of protons (p) and neutrons (n) for four isotopes.



(i)(ii)(iii)(iv)
p19192020
n19211920



Write the symbol for the isotope (ii).