Valence-Shell Configuration

[KDang_1D]

1E.25 Give the notation for the valence-shell configuration (including the outermost d-electrons) of (a) the alkali metals; (b) Group 15 elements; (c) Group 5 transition metals; (d) the "coinage" metals (Cu, Ag, Au).

What is the "valence-shell configuration"? What does n and (n-1) represent in the answer?

[Jessica Castellanos]

The valence shell configuration is writing the electron configurations of the outermost electrons the n represents the number for the shells and for the d-block instead of n its (n-1) which is just the pattern of electron configurations. I hope this helps!