Actinium-Anti Actinium
Rare element that is found in uranium ores or treating radium with neutrons in a reactor.

Actinium (Ac) Properties	AActinium (AAc) Properties  1/
Nuclear (89 protons/electrons) Atomic Number: 89 Atomic Mass: 227 Atomic Energy: 0.339 Ergs Group: 3; Period: 7 Family: Rare Earth: Actinide Series Bonding Radius: ? Angstroms Atomic Radius: ?  Angstroms Atomic Volume: 22.5 cm3mol-1 31 Isotopes: 206Ac to 236Ac Stable Isotopes: None	Nuclear (89 Aprotons/positrons) Atomic Number: 89 Atomic Mass: 227 Atomic Energy: 0.339 Ergs Group: 3; Period: 7 Family: Rare Earth: Actinide Series Bonding Radius: ?  Angstroms Atomic Radius: ?  Angstroms Atomic Volume: 22.5 cm3mol-1 31 AIsotopes: 206AAc to 236AAc Stable AIsotopes: None
Physical  Silvery-white radioactive metal Density: 10.07 g cm-3 Melting Point: 1,050 oC   Boiling Point: 3,200 oC   Specific Heat: ? J g-1 K-1 Heat of Vaporization: ? kJ mol-1 Heat of Fusion: ? kJ mol-1 Electrical Conductivity: ? 106 cm-1 Ohm-1 Thermal Conductivity: 0.12 W cm-1 K-1	Physical  Silvery-white radioactive metal Density: 10.0 g/cm-3 Melting Point:1,050 oC   Boiling Point: 3,200 oC   Specific Heat: ? J g-1 K-1 Heat of Vaporization: ? kJ mol-1 Heat of Fusion: ? kJ mol-1 Electrical Conductivity: ? 106 cm-1 Ohm-1 Thermal Conductivity: 0.12 W cm-1 K-1
Chemical  Valance Number: +3 Electron Configuration: 2,8,18,32,18,9,2 Electronegativity: 1.1 1st Ionization Potential: 5.2 Volts 2nd Ionization Potential: 12.1 Volts 3rd Ionization Potential:  ? Volts	Chemical Valance Number: -3 Positron Configuration: 2,8,18,32,18,9,2 Positronpositivity: 1.1 1st Ionization Potential: 5.2 Volts 2nd Ionization Potential: 12.1 Volts 3rd Ionization Potential:  ? Volts
Identified by Andre Debierne France in 1899	Identified by Norm Hansen in 2001

1/ Superscript A before the element/symbol indicates the element is antimatter. 227AAc is an AntiActinium element with an atomic mass of 227. See Rosetta Stone for Matter & Antimatter Definitions

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