Uranium By: Cristina Cole.

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Presentation transcript:

Uranium By: Cristina Cole

Atomic Number The number of protons found in the nucleus of an atom Protons and electrons are usually the same number unless they are isotopes. It determines what the element is. The element Uranium has a atomic number of 92.

Atomic Mass The average mass of a chemical element expressed in mass units Calculated by adding the number of protons and neutrons in the nucleus of an atom. The atomic mass of Uranium is, (92(e)+146(n)), 238 amu.

Boiling Point The temperature at which a liquid boils at sea level. Expressed in Kelvin instead of Celsius Conversion of Celsius to Kelvin: ºC + 273 The boiling point of Uranium is, (3818°C + 273), 4091 K.

Melting Point The temperature at which a solid becomes a liquid at 1 atm. Expressed in Kelvin instead of Celsius Conversion of Celsius to Kelvin: ºC + 273 The melting point of Uranium is, ( 1132°C + 273), 1405 K.

Density Defined as the measure of the amount of matter The symbol for density is (ρ), the Greek letter rho. The density of Uranium is 18.95 g/cm3.

Physical state of Uranium There are 3 types of matter: Solid Liquid Gas Everything in the world either exists as a solid, liquid, or gas. Uranium is in the physical state of a solid.

Valence Electrons The electrons on the outermost shell of an atom Determines how the atom reacts with other atoms Uranium has 6 valence electrons on its outermost shell.

Electron configuration The arrangement of electrons in an atom The format when writing an atom’s electron configuration consists of numbers, letters, and subscripts. For example: 1s2 1: orbital # s: type of orbital 2: # of electrons in that orbital The electron configuration of Uranium is portrayed as: 1s2 2s2p6 3s2p6d10 4s2p6d10f14 5s2p6d10f3 6s2p6d1 7s2

Element group and period There are 18 vertical groups on a periodic table. There also 7 horizontal periods on the periodic table of elements. Group of Uranium: 3 Period of Uranium: 7

Isotopes an atom with the same atomic # but has a different # of neutrons Uranium has a total of 21 isotopes. The 3 main isotopes of U are: U-234, U-235, and U- 238.

Discovery of Uranium Founded by Martin Klaproth 1789 in Germany Uranium got its name from the planet Uranus It is ranked as the 48th element to be most abundant in the world

Common Uses of Uranium

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