There was little change in the understanding of the atom until John ... Bohr revised Rutherford's model by suggesting that the electrons orbited the nucleus in different energy levels or at ...

Explain that scientists use models of atoms to see the different ways atoms can connect together to ... Explain that a water molecule has two hydrogen atoms and one oxygen atom. Ask students to use ...

In 1913, Niels Bohr revised Rutherford's model by suggesting that the electrons orbited the nucleus in different energy levels ... be the same for every single atom of that element.