Which action do researchers take to make advances in science?

Which statement about the stamps is correct?

The conventional equilibrium constant expression (kc) for the system below is: 2icl(s) ⇄ i2(s) + cl2(g) [cl2] ([i2] + [cl2])/2[icl] [i2][cl2]/[icl]2 none of the listed answers are correct [i2][cl2]/2[icl]

Use the periodic table to determine the electron configuration of dysprosium (dy) and americium (am) in noble-gas notation.