The electron configuration for a atom whose element has a atomic number of 8 (Oxygen) is 2,6
The answer is PO4^-3 is non-polar.
The charge would be -2 because there are 2 more electrons than protons, and electrons have a negative charge.
To calculate the molarity of a solution, you divide the moles of solute by the volume of the solution expressed in liters. Note that the volume is in liters of solution and not liters of solvent. When a molarity is reported, the unit is the symbol M and is read as “molar”.
I hope this helped :)
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