Xe Atomic Number

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  1. Number Of Neutrons In Xenon
  2. Xe Atomic Number Periodic Table
  3. Atomic Number For Xe

Atomic Number of Xenon Atomic Number of Xenon is 54. Chemical symbol for Xenon is Xe. Number of protons in Xenon is 54. Xe: 131.293: 1: 63.339%. In chemistry, the formula weight is a quantity computed by multiplying the atomic weight (in atomic mass units) of each element in a chemical formula by the number of atoms of that element present in the formula, then adding all of these products together.

Xenon was discovered in England by the Scottish chemist William Ramsay and English chemist Morris Travers on July 12, 1898, shortly after their discovery of the elements krypton and neon. They found xenon in the residue left over from evaporating components of liquid air.

Name: XenonSymbol: XeAtomic number: 54Atomic weight: 131.29State: gasGroup, period, block: 18, 5, pColor: colorless gasXe Atomic NumberClassification: noble gasesAtomicElectron configuration: 5s2 4d10 5p6

Physical properties

Density: 5.894 g/LMelting point: 161.4 K, -111.7 °C, -169.1 °FBoiling point: 165.03 K, -108.12 °C, -162.62 °F
Xe Atomic Number

Atomic properties

Oxidation states: 0, +1, +2, +4, +6, +8Electronegativity: 2.6 (Pauling scale)Ionization energies: 1st: 1170.4 kJ·mol-1Covalent radius: 140±9 pmVan der Waals radius: 216 pm

Number Of Neutrons In Xenon

    Electron Configuration


There are nine naturally occurring of xenon exist, 124Xe, 126Xe, 128Xe, 129Xe, 130Xe, 131Xe, 132Xe, 134Xe, and 136Xe.

Xe Atomic Number Periodic Table

Xe atomic number definition

In the modern periodic table, the elements are listed in order of increasing atomic number. The atomic number is the number of protons in the nucleus of an atom. The number of protons define the identity of an element (i.e., an element with 6 protons is a carbon atom, no matter how many neutrons may be present). The number of protons determines how many electrons surround the nucleus, and it is the arrangement of these electrons that determines most of the chemical behavior of an element.

In a periodic table arranged in order of increasing atomic number, elements having similar chemical properties naturally line up in the same column (group). For instance, all of the elements in Group 1A are relatively soft metals, react violently with water, and form 1+ charges; all of the elements in Group 8A are unreactive, monatomic gases at room temperature, etc. In other words, there is a periodic repetition of the properties of the chemical elements with increasing mass.

Atomic Number For Xe

In the original periodic table published by Dimitri Mendeleev in 1869, the elements were arranged according to increasing atomic mass— at that time, the nucleus had not yet been discovered, and there was no understanding at all of the interior structure of the atom, so atomic mass was the only guide to use. Once the structure of the nucleus was understood, it became clear that it was the atomic number that governed the properties of the elements.