Essays Tagged: "valence electrons"

Metallic and Ionic bonding.

en charged particles: electrostatic forceObtaining stability ?Releasing one or more of outer shell (valence) electrons into a common pool within lattice. Atom is now a positive ion.Metallic bonding mo ... led delocalised electrons?Because they belong to lattice as a whole?Delocalised electrons come from valence (outer) shell. (fig 3.5)oElectrons that are not free to move throughout the lattice:?Localis ...

(5 pages) 46 0 2.0 Sep/2003

Subjects: Science Essays > Chemistry

Metabolic Process notes These are just notes for

attraction to the positively charged nucleus.-the outermost orbital or energy levels are termed the valence orbital; the valence electrons ** the chemical behaviour of an atom is determined by the num ... e electrons ** the chemical behaviour of an atom is determined by the number and arrangement of the valence electrons.The need for stability - there are a group of elements in the Periodic Table calle ...

(3 pages) 35 0 5.0 Mar/2004

Subjects: Science Essays > Biology > Human Biology

How did calcium compounds affect the world?

robably the most important calcium compound. Because of the metallic properties of Calcium, lots of valence electrons free to move around, and the negative attraction of the atoms, Limestone is usuall ...

(3 pages) 28 0 4.1 Sep/2004

Subjects: Science Essays > Chemistry

Metals, Minerals & Gemstones: Types of bonding and their properties

ged atoms (cation and anions). Ionic bonding involves atoms forming as positive ions when they lose valence electrons and negative ions when they gain electrons. Positive and negative ions are attract ... polar and then Ionic.Metallic BondingMetallic bonds consist of the attraction of the free floating valence electrons for the positive charged metal ions.Properties of Metallic Bonding1. Conducts elec ...

(3 pages) 12 0 0.0 Dec/2006

Subjects: Science Essays > Chemistry

Chemical bonding

ion between them because one is positive and the other negative and that the Cl atom contains seven valence electrons and Na one. So, as the atoms bond the Na loses its valence electron and Cl gains i ...

(2 pages) 8 0 0.0 Feb/2008

Subjects: Science Essays > Chemistry

Intermolecular forces- describing the three types of bonding, giving examples, and intermolecular forces

from each element. In order to do so, each element has to reach its octet or have a total of eight valence electrons. The element Hydrogen only needs two valence electrons for it to achieve stability ... t Hydrogen only needs two valence electrons for it to achieve stability. In case you are wondering, valence electrons are negatively charged subatomic particles that circle in the outermost cloud on a ...

(3 pages) 16 0 0.0 Dec/2008

Subjects: Science Essays > Chemistry


e", n.d). Ethane gas has a two carbon atoms in the chain and each of the two carbon atoms share two valence electrons with the other. If two molecules of ethane are brought together, one of the carbon ... an be joined with a carbon-carbon bond. After the two monomers are joined, there are still two free valence electrons at each end of the chain for joining other monomers or polymer chains. This is pro ...

(5 pages) 2 0 0.0 Nov/2012

Subjects: Science Essays > Chemistry