The following electron configurations correspond to the ground states of certain elements. Name each element.

Question

a) [Ar]3d^10 4s^2 4p^4
b) [Ne]3s^2 3p^3
c) [Ar]3d^2 4s^2
d) [Kr]4d^1 5s^2
e) [Xe]4f^13 6s^2

Answer 1

Count the electrons. That will equal the protons and that is the atomic number. Look on the periodic table to identify the element.