77. interpreting data given the following data about
an atom's ionization energies, predict its valence elec-
tron configuration. explain your reasoning.
lonization data
ionization
ionization energy (kj/mol)
first
734
second
1850
third
16 432

B"hf and f-"  is the correct answer took the test on edgenuity and got it right     

Ithink the answer is d.

1. why does the same side of the moon always face earthc.the rotational period of the moon is equal to one revolution around earth2. which is greater the moons period of rotation or its period of revolution  b.the moons revolution period around earth3.what was the major accomplishment of the apollo missions  d.landing on and exploring the moon4. which of these space missions involved the deployment of lunar rovers d.apollo5. which scientists are going to explore next on kepler-186fd. evidence of existence of life6.which mission is not going to explore the outside of the solar systemb.safir7.which technology limit the future of space exploration b. scientist must first develop certain technologies before missions can be completed.

Elements that have complete valence shells are found in group 18, also known as the noble gases. these gases possess the stable octet, and are neon, radon, xenon, etc.