cHeMiCaL bOuNdInG pRoJeCt

Mario chanona

Intro

• What is a chemical bond? Well, its simple a chemical bond is an attraction between

electrons of one atom to the nucleus of another atom tHeRe ArE 3 TyPeS Of cHeMiCaL BoUnD: Ionic Covalent Polar covalent

Most atoms form chemical bond in order to be stable and have 8 electrons in their valence orbital. Which means they will share,give,or take electrons from other atoms

Ionic bounding

Formation: the transfer of electrons between atoms , which will cause both atoms with a cation

(postive) and anion(negtive). 3 physical properties: Melting pointBoiling pointNon-conductors in dry stateThe energy involved in the formation of an ionic bond is from the positive (cation) and

negative (anion)

Ionic pics

Covalent bonds

• How does the octet rule apply to atoms? electrons are shared between each otherFormation of covalent bounds : Single: 2 electrons are shared between atoms Double: 4 electrons are shared between atoms Triple: 6 electrons are shared between atoms

Covalent bonds

Covalent Bonds 2

Sigma Vs. Pi Bonds sigma =end-to-end=single pi=side-to-side= unhybridized=double

How is bond length related to bond dissociation energy? As bond length decreases bond dissociation energy decreases

Metallic Bonds

• What is a metallic bond? chemical bond that holds the atoms of metal together

How conductivity of electricity and high melting point are by metallic?

When they bond, positive nuclei is formed with a “sea” of floating electrons moving in between the nuclei . This causes a great bond between them.

Metallic bond 2

• What is alloys ? metal made by the combining of 2 or more metallic

elements, to give greater strength or resistance to corrosion.