Platinum is a crystalline solid with a cubical close-packed crystal structure which refers to the alignment of the atoms parade [1]. This arrangement consists of an atom at each corner of the auction block and the extra atoms are packed into the sides of the cube much resembling that in Graphic 1 below [1].
Graphic 1
The cubic close-packed structure is easy to see in this delineation [1]
The metallic radius is 139 nm which re baffles the closest platinum to platinum separation (bond length) as 277.5 nm [1]. It is composed of 78 protons and 117 neutrons with an electronic configuration of 2.8.18.32.17.1 as seen in Graphic 2 [2]. This electronic structure represents a hierarchical home plate of 6 null levels within platinum.
Graphic 2
The representation of the energy levels is clearly present in this graphic [2]
Platinum in its naturally cash in ones chipsring evidence consists of 5 stable isotopes 1 radio isotope being Pt-190 which has an extremely long half life of 6.0E11 years, although there are many a(prenominal) other known isotopes for platinum that do not occur naturally [2].
The atoms can be said to have a covalent bond due to an electronegativity of 2.28 on the Pauling scale leaving its covalent radius to be 128 pm [3]. Platinum lays within the d-block group of elements leaving the highest energy electron in the d-orbital at atomic ground state, allowing it to be a change metal, and making it only possible to form stable ions with an uncomplete d subshell. [3]
References
[1] Shell Structure of Platinum. Webelements. 27 Feb. 2006
[2] Bentor, Yinon. Chemical Element.com - Platinum. Feb. 28, 2006
[3] Platinum. Wikipedia. 27 Feb. 2006
If you want to get a full essay, wisit our page: write my essay .
No comments:
Post a Comment