Nuclear decay can change one element into another one

Imagine that you push on a large rock. at what point does your effort change the rock’s mechanical energy?

What does an electron configuration for an atom relate to the atoms placement on the periodic table

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