How many total valence electrons are there in a molecule of PO43-?Include bonding electrons and any lone pairs. Provide a whole number.

To determine the total number of valence electrons in a molecule of PO43-, we need to consider the valence electrons of each atom in the molecule and the charge of the molecule.

1. Phosphorus (P) has 5 valence electrons in its outer shell.
2. Oxygen (O) has 6 valence electrons in its outer shell. Since there are 4 oxygen atoms in the molecule, we multiply 6 by 4 to get 24.
3. The molecule has a charge of -3. This means there are 3 extra electrons in the molecule.

Adding these together:

5 (from P) + 24 (from 4 O's) + 3 (from the charge of the molecule) = 32

So, there are 32 total valence electrons in a molecule of PO43-.