Give the ground state electron configuration for pb.

According to periodic trend, which of the following most likely has the highest ionization energy? kr be ni sc

In the millikan oil drop experiment they determined that every drop had a charge which was a while number multiple of -1.60x10^-19. if a drop has a total charge of -9.60x10^-19 then how many excess electrons are contained within the drop?

The plant food contains nh4)3po4 what tests would you run to verify the presence of the nh4 ion and the po4 ion