and minimizes waste down to the molecular level. This exercise uses molecular models to calculate atom economy for a saponification reaction. As part of the ChemClub's 10 th Anniversary, we asked ...

That’s why this periodic table clock really caught our eye. [gocivici]’s idea is a simple one: light up three different elements with three different colors for hours, minutes, and seconds ...

An alternative periodic table of elements focusing on highly charged ions reveals new science that could support the quest for more accurate optical atomic clocks ...

The electrons surround the nucleus in 3 dimensions but it is easier to show an energy level model in two dimensions like the model that looks like a target. This energy level model shows two electrons ...