A body cell of 1.0×10−5-m radius absorbs 4.2×10−14 J of X-ray radiation. : If the

A body cell of 1.0×10−5-m radius absorbs 4.2×10−14 J of X-ray radiation.
: If the energy needed to produce one positively charged ion is 100 eV, how many positive ions are produced in the cell?
: How many ions are formed in the 3.0 × 10−6-m-radius nucleus of that cell (the place where the genetic information is stored)?