Determinaţi numărul atomic pentru elemetele situate în: a) grupa a II-a A, perioada 2;
b) grupaa V-a A, perioada 3;
c) grupa a II -a A, periada 4;
d) grupa a VI-a A, perioada 3.

How are the terms group and period used on the periodic table

We are hoping to create 5.72 grams of glucose. the plant was given 4.75 liters of co2 and 2.81 g of h20. which reactant was the limiting reagent? how much excess mass did we have of the other reactant?

You are attempting to recrystallize a crude product mixture. you add the appropriate amount of hot solvent and are allowing the solution to slowly cool to room temperature. however, at room temperature no crystals have appeared, which of the following methods should be used to induce crystallization? choose all correct answers. a) place the flask in an ice bath. b) swirl the contents of the flask. c) add a small seed crystal of the desired product. d) scratch the inside of the glassware using a stir rod. it can be multiple choices