By 1911 Rutherford had gathered enough evidence to put forward his theory of the nuclear atom
In the light of Rutherford's nuclear atom
(see 1911), the positive rays appeared to be streams of atomic nuclei.
Now that Rutherford had formulated the nuclear atom
(see 1911), it was posible to view the hydrogen atom as consisting of a nucleus (bearing a charge of +1) and a single electron (with a charge of -1) circling it.