nuclear atom

Also found in: Encyclopedia.

nu·cle·ar at·om

a concept or model of the atom characterized by the presence of a small, massive nucleus at its center.
References in periodicals archive ?
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.