What is the energy of he+from the ground state
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Experimental value of ionization energy
- The total ground state energy of the helium atom is −79.005151042(40) eV, or −2.90338583(13) Atomic units a.u., which equals −5.80677166 (26) Ry.
- Molar mass: 4.002602 g·mol−1
- Boiling point: −269 °C (−452.20 °F; 4.15 K)
- Appearance: Colourless gas
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