Use the rules for determining electron configurations to write the electron configuration for P. Express your answer in complete form in order of increasing orbital energy.

Write the valence-electron configuration of each of the following elements, basing your answer on the element’s location on the periodic table. uranium, Z=92 c. mercury, Z=80 manganese, Z=25 d. francium, Z=87

Although we may draw the 4s orbital with the shape of a ball, there is some probability of finding the electron outside the ball we draw. Is this statement true or false? Comment on this statement.

r Questions 11—13, you will need to consider ionizations beyond the first ionization energy. For example, the second ionization energy is the energy to remove a second electron from an element. Compare the first ionization energy of helium to its second ionization energy, remembering that both electrons come from the 1s orbital. l> X Y First 170 200 second 350 400 Third 1800 3500 fouth 2500 5000 entify the elements X and Y. There may be more than one answer. so explain completely.

Write one possible set of quantum numbers for the valence electrons of calcium.

ive the electron configurations for the following atoms. Do not use the noble gas notation. Write out the complete electron configuration. trong>ElementElectron configuration __________ emsp; __________ emsp; __________ emsp; __________ __________

Which orbital is the first be filled in any atom? Why?