What is the trend of ionic radius? O lonic radius increases from period 1 to period 7.
O lonic radius increases in cations and decreases in anions.
O lonic radius decreases from group 1 to group 18.
O lonic radius decreases from period 1 to period 7.

Asolution of naoh has a concentration of 25.00% by mass. what mass of naoh is present in 0.250 g of this solution? use the periodic table in the toolbar if needed. 0.0625 g what mass of naoh must be added to the solution to increase the concentration to 30.00% by mass? g