SORRY, YOU WERE INCORRECT.
HERE IS THE EXPLANATION OF THE QUESTION
#19. Which element has the following electron configuration? [Kr]5s24d105p2?
a. In
b. Rb
c. Pb
d.
Sn - To see this refer to the periodic table shown below.
If you follow the arrows, it will show how you arrive at the answer. This can also be seen by following the books flow chart, which is seen below.
