7.137 Based on knowledge of the electronic configuration oftitanium, state which of the following compounds oftitanium is unlikely to exist: K3TiF6, K2Ti2O5, TiCl3,K2TiO4, K2TiF6.

Consider a magnesium (Mg) atom that could have an electronic configuration of either [Ne]3s2 or [Ne]3s13p1.  Discuss the following: a)  Give one argument for why the [Ne]3s2 configuration might be more stable. b)  Give one argument for why the [Ne]3s13p1 configuration might be more stable. c)  Which configuration does Mg actually adopt and why?

what is the electron configuration s p d f of Bi3-

4. Write an appropriate set of four quantum numbers (n, l, ml & ms) that could be representative of a valence electron in each of the following atoms or ions. (a) Bi (m (b) Sr (c) Mo (d) Ru2+ (e) Eu

What is the identity of the ion with an electron configuration [Xe]4f145d9 and has a charge of +4?

would you predict that Sc is metallic? Explain the basis for your predicition by using what you know about its location in the Periodic Table.

Write the condensed ground-state electron configurations of these transition metal ions, and state which are paramagnetic:(a) V³⁺(b) Cd²⁺(c) Co²⁺(d) Ag⁺

3. At 525 nm, the permanganate ions absorb which color of light?

what is electron configurations for V(-1)? Vanadium

Use the data from Appendix F to graph the variation ofatomic radius with atomic number for the rare-earth elements from lanthanum to lutetium.(a) What is the general trend in these radii? How do you     account for it?(b) Which two elements in the series present exceptions to      the trend?