You are performing an experiment that requires 4.20 M hydrochloric acid. You have a bottle of hydrochloric acid which is labeled as 6.30 M hydrochloric acid. If you use 0.375 L of the hydrochloric acid from this bottle to make the diluted solution for your experiment, what will the final volume of the diluted solution be?

They adding another layer their bahaviors.

Ibelieve this is not the full question but a lead is visual similarities   

Answer: 1s²  2s²  2p⁶explanation: from the periodic table, we can note that the neutral fluorine  has 9 electrons (symbol is shown in the attached image)therefore, the configuration of neutral fluorine  is: 1s²  2s²  2p⁵now, f⁻  means that the neutral fluorine  gained one extra electron. this means that f⁻  has 10 electrons.the extra electron will occupy the 2p level to make it complete.the configuration now  is: 1s²  2s²  2p⁶comparing between both f and f⁻, we can note that f⁻  has now complete orbitals which means that it is more stable than f based on lewis postulatehope this : )