The atoms bond because there is a strong enough attraction in both directions and room for the electrons in the outer energy level of the atoms. When two hydrogen atoms and an oxygen atom get close ...

There are seven colors in the rainbow, seven basic musical notes, and seven energy levels in the hydrogen atom. For many scholars, this reinforces the idea that 7 is a fundamental number in the ...

As the energy levels have different values, each of the possible electron transitions within an atom will produce a photon with a different energy. This means that each electron transition will ...

Negatively charged particles that spin around the positive centre of the atom in circles called energy levels. Their mass is so small it is nearly zero. Positively charged particles that are ...

The reaction releases a lot of heat as the ionic compound sodium chloride is formed. A sodium and chlorine atom are near each other. An electron from each atom feels the attraction from the other atom ...