Final answer:
The final overall charge for sodium and fluoride is zero. Sodium has a +1 charge and fluoride has a -1 charge, and when they combine, their charges cancel out.
Step-by-step explanation:
The final overall charge for sodium and fluoride is zero. Sodium has a +1 charge and fluoride has a -1 charge. When they combine to form an ionic compound called sodium fluoride, the +1 charge from sodium cancels out the -1 charge from fluoride, resulting in a overall charge of zero.