There is a dollar limit on the amount of your work-related expenses you can use to figure the credit. This limit is $3,000 for one qualifying person, or $6,000 for two or more qualifying persons. If you paid work-related expenses for the care of two or more qualifying persons, the applicable dollar limit is $6,000.ou paid work-related expenses of $3,000 for the care of your 5-year-old child and qualified to claim the credit. The amount of expenses you use to figure your credit cannot be more than $2,000 (the smaller of your earned income or that of your spouse).
Hg: Symbol for the metallic element mercury. The abbreviation mm Hg means millimeters of mercury, the height of a column of mercury, as in a blood pressure reading. Mercury is poisonous to people. See Mercury poisoning.
Therefore, 19580 Hg is radioactive. Nuclear Binding Energy. The nuclear binding energy is an energy required to break up a nucleus into its components protons and neutrons. In essence, it is a quantitative measure of the nuclear stability.