The ground-state electron configuration contains three unpaired 4f electrons.

Calculate the molarity of 48.0 ml of 6.00 m h2so4 diluted to 0.250 l .

Select the correct answer from each drop-down menu. to make a table of the elements, dmitri mendeleev sorted the elements according to their . he then split the list of elements into several columns so that elements beside each other had similar .

Why do electrons further from the nucleus have more energy