Identify the type of question, mg-> mg^2+ +2e-

Which is true of transition metals when moving from left to right on the periodic table? the d sublevels are not filled across the period. the cation radii become larger across the period. atomic radii increase slightly and then start to decrease. atomic radii decrease slightly and then start to increase. o

__can be defined as which velocity changes

Which of these conditions most likely produces an unstable isotope?