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Question:

What is the oxidation state and electron configuration for cobalt in CoAl2O4, respectively?

Also could I know the same for Aluminum? Thanks!

Answer:

eggplant and greenplant and others
Tops on the list would be Black Beans.followed by other varieties of beans.
Tom Jones lady's and gentlemen TOM JONES
Most vegetables are high in fiberespecially avocado, tomatoes, artichoke, and beansBut as far as fruit goes, the best would probably grapefruitAnd also pears and apples are good.
The oxidation state of cobalt is 2+ because each oxygen is always 2- and aluminum is 3+The Co2+ ion has the electron configuration of 1s^2 2s^2 2p^6 3s^2 3p^6 4s^2 3d^5 or [Ar]4s^2 3d^5, because it has lost two electronsSome teachers like it if you put 3d^5 before 4s^2, thoughThe aluminum ion Al3+ also has the electron configuration of 1s^2 2s^2 2p^6 3s^2 3p^1 or [Ne]3s^2 3p^1.

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