Why do elements that make positive ions occur on the left side of the periodic table while those that make negative ions occur on the right?

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

What volume of a 2.00 m stock solution of naoh is needed to prepare 150. ml of 0.40 m solution?

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