Born Neta-Lee Hershlag has an estimated net worth of $54 million. Natalie Portman was born to Shelley and Avner Hershlag in Jerusalem, Israel.
Barium is a chemical element with symbol Ba and atomic number 56. It is the fifth element in Group 2, a soft silvery metallic alkaline earth metal. Because of its high chemical reactivity, barium is never found in nature as a free element. The hydroxide, known in pre-modern history as baryta, does not occur as a mineral, but can be prepared by heating barium carbonate.
Barium: orbital properties. Barium atoms have 56 electrons and the shell structure is 2.8.18.18.8.2. The ground state electronic configuration of neutral Barium is [ Xe ]. 6s 2 and the term symbol of Barium is 1 S 0. 1  Pauling electronegativity: 0.89 (Pauling units). 2  First ionisation energy: 502.9 kJ mol â1. 3  Second ionisation energy: 965.2 kJ mol â1.