Problem: Complete the following table.SymbolZA #p  #e  #n Charge_____8____________82-Ca2+20____________20____Mg2+____25________132+N3-____14____10________Complete the fourth column of the table.

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We’re being asked to complete the fourth column of the given table.


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




Recall that the number of protons is equal to the atomic number.


For the first row: 


The atomic number Z = 8 is already givenThis means that: 

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Problem Details
Complete the following table.


SymbolZA #p  #e  #n Charge
_____8____________82-
Ca2+20____________20____
Mg2+____25________132+
N3-____14____10________


Complete the fourth column of the table.

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