What cell structure is found only in Eukaryote cells, but not in Prokaryote cells?

Complete the table for ion charge based upon their losing or gaining electrons in the outer shell. (use the periodic table as necessary.) group most likely ionic charge # of valence electrons i +1 ii +2 iii +3 iv +4 or -4 v -3 vi -2 vii -1 viii 0

What type of electromagnetic radiation has a shorter wavelength than blue light

What is the area in square meters of 448 g ai foil that has a thickness of 23921 nm? the density is 2.70 g/cm