What element forms an ion with an electronic configuration of [Kr] and a −2 charge?

Heating elemental cesium and platinum together for two days at 973 K gives a dark red ionic compound that is 57.67% Cs and 42.33% Pt. (c) What are the charge and electron configuration of the platinum ion?

Take a guess. What do you think is a likely ground-state electron configuration for the sodium ion, Na+, formed by loss of an electron from a neutral sodium atom?

(d) Treating bismuth with fluorine gas forms BiF5. Use the electron configuration of Bi to explain the formation of a compound with this formulation.

How many electrons must an n atom accept to gain stability

Enter the electron configuration for the ion most likely formed by phosphorus.

Select the name of the element that forms a 2+ ion with electron configuration