 Color is unknown, but it’s believed to be silvery grey in appearance  Rare earth metal  No known uses  Solid  Very radioactive  Melting point: 1580 degrees Fahrenheit  Density: 8.84 g/cm -3

 Hexagonal crystalline structure  No natural isotopes

 Symbol: Es  Atomic Number: 99  Atomic Weight: [252]  Number of Protons: 99  Number of Neutrons: 153  Number of Electrons: 99

 Block: F  Period: 7(actinoid)  Group: Actinoids  Electron Configuration: [Rn]7s 2 5f 11

 No known uses

 Located in debris of thermonuclear explosions  Very little exists at all and none naturally

 Since very little exists in the world, Einsteinium’s reactivity with air is unknown  For the same reason its reactivity with water is also largely unknown although it is believed that it would form einsteinium oxide

 Einsteinium is named after Albert Einstein  Einsteinium was first discovered in 1952 by Albert Ghiorso at the University of California, Berkeley, and another team headed by G.R. Choppin  No einsteinium exists naturally  It has no known uses  Its color is also unknown  Created by neutron irradiation of uranium in a thermonuclear explosion  Now created in labs by irradiating plutonium G_4nJLNXA0 G_4nJLNXA0