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Chemical Bondong

A Compound a substance that is made up of two or more different elements combined chemically.
the octet rule states when bonding occurs, atoms tend to reach an electron arrangement of 8 electrons on their outermost shell
an ion is a charged ion or group of charged ions
an ionic bond is the force of attraction between oppositely charged ions in a compound
a transition metal is one that forms at least one ion in a partially filled d sublevel
a molecule is two or more atoms joined together. it is the smallest part of an element or compound that can exist independently
the valency of an element is the number of hydrogen atoms or other monovalent elements with which each atom of the element combines
electronegativity is the relative attraction an atom in a molecule has for a shared pair of electrons in a covalent bond
electronegativity difference greater than 1.7 indicates an ionic bond. less or equal to 1.7 indicates a covalent bond
Van Der Waals forces are weak attractive forces between molecules resulting from the formation of temporary dipoles
Dipole-Dipole forces are forces of attraction between the negative pole of one molecule and the postive pole of another
hydrogen bonds are a particular type of dipole-dipole attractions between molecules where hydrogen atoms are bonded to nitrogen, oxygen and fluorine.
the hydrogen atom carries a partially positive charge and is attracted to the electronegative atom in another molecule. thus, it acts as a bridge between two electonegative atoms
Created by: saoirse sarah



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