Players read questions about energy levels and score points by picking the correct element as the answer. Electrons are in regions around the nucleus that are different distances away from the nucleus ...

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 ...

The periodic table captures a subtle pattern that runs through the chemical elements, the fundamental building blocks of everything around us: from the aluminium in bike frames to the xenon gas in ...

As you move from left to right across the periodic table, atoms have more electrons in their outer energy level and more protons in their nucleus. The greater attraction between the increased ...

The periodic table is a way of arranging elements according ... In this, the electrons orbit in particular shells – or energy levels to give them their correct name – which are precisely ...