Which pair of groups will have larger ionic radii compared to their atomic radii after gaining electrons? a chalcogens and alkaline earth metals b halogens and alkali metals c alkali and alkaline earth metals d transition and inner-transition metals e chalcogens and halogens

This is a characteristic of the elements in the periodic table that shows a pattern. it may increase or decrease across or down the table.

How many atoms of mg are present in 97.22 grams of mg? 6.022 × 1023 2.408 × 1024 4.818 × 1024 5.855 × 1025

The table compares the number of electrons in two unknown neutral atoms. comparison of electrons atom number of electrons a 9 d 11 use this information to determine the number of valence electrons in the atoms. which of the following correctly compares the stability of tthe table compares the number of electrons in two unknown neutral atoms. comparison of electrons atom number of electrons a 9 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.