The typical size of atoms and small molecules is around 1 × 10-10 m (0.1 nm). For example: diameter of a hydrogen atom, H 1.0 × 10-10 m width of a hydrogen molecule, H 2 2.9 × 10-10 m ...

When two hydrogen atoms get close enough, the electron from each atom feels an attraction from the proton in the other atom's nucleus. This attraction pulls the atoms together. The electrons end up ...

Like ordinary water—H 2 0—each molecule of heavy water contains two hydrogen atoms and one oxygen atom. The difference, though, lies in the hydrogen atoms. In ordinary water, each hydrogen ...

In an ambition to address the challenges of hydrogen, specifically the reliance on fossil fuels and expensive precious metals like platinum, scientists developed a method to convert metal waste ...

The HER catalyst electrodes, traditionally made of platinum, facilitate the conversion of nascent hydrogen ([H]) -- generated at the electrode surface during water splitting -- into hydrogen gas ...

Use the animation to show students a ball model of a water molecule (H 2 O) and post the water molecule card. Explain that a water molecule has two hydrogen atoms and one oxygen atom. Ask students to ...