Compare and contrast the uses of iron triad and the use of coinage metals

Me i dont know what to do! the table compares the number of electrons in two unknown neutral atoms. comparison of electrons atom number of electrons a 10 d 11 use this information to determine the number of valence electrons in the atoms. which of the following correctly compares the stability of the two atoms? both are unreactive. both are highly reactive. a is unreactive and d is reactive. a is reactive and d is unreactive.

How does a noncompetitive inhibitor reduce an enzyme’s activity?

The biosphere of the earth is made up of what compound? organic or inorganic?