Subatomic Particles and Periodic Properties

I have 11 protons, 11 electrons, and 12 Neutrons. There are 13 known isotopes of Sodium but 23 Na is the only stable one and the atomic mass is 22.98977 amu. My atomic radius is 186pm, my first ionization energy is 495.8 kJ mol-1, my second energy level is 4562.4 kJ mol-1, and my third is 6912.2 kJ mol-1. My electronegativity is .93 and my electron affinity is 52.868 kJ mol-1.