A dentist is interested in obtaining information about delinquent (past due) accounts. Since the practice opened 8 years ago, de
linquent accounts are normally distributed with an average of 43 days and a variance of 196.00 days. The dentist randomly selected a sample of 20 delinquent accounts with an average of 47 days.
I'll say that it is +1 since hydrogen is desperate to lose an electron to fulfill the octave rule (that the molecules want to gain 8 electrons and if they can't do it, they want to lose all their electron). Electron is - so if it lose a electron, it becomes +. Hopefully this helps. PS. I'm not certain of my answer but it is logical.