For a neutral atom, the number of protons is equal to the number of electrons. Since the atom contains 29 electrons, it must also contain 29 protons. Therefore, the atomic number (Z) of the element is 29. The electronic configuration is determined by filling the 29 electrons into atomic orbitals in order of increasing energy, in accordance with the Pauli exclusion principle and Hund's rule of maximum multiplicity. For Z=29, the completely filled and half-filled/fully-filled subshell stability leads to the configuration $1s^2 2s^2 2p^6 3s^2 3p^6 4s^1 3d^{10}$.