chemical bounding project by mario
DESCRIPTION
This is my project for chemistry plz don't post any bad comment or send me friend request because i just did for a project. Hope you guys enjoyTRANSCRIPT
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.