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Chemical bonding

Question/TermAnswer/Defintion
Compound Substance that is made up of two or more different elements combined together chemically
Octet Rule States that when bonding occurs, atoms tend to reach electron arrangement with eight electrons in the outermost shell.
What elements are the exception to octet rule? H-Hydrogen and He-Helium. These only require 2 electrons in the outermost shell as they only have one shell
Ion Charged atom or group of atoms
Ionic bond Is the force of attraction between oppositely charged ions in a compound
Transition metal Element that forms at least one ion with a partially filled d sublevel
Name one a transition metal? Sc-scandium, Ti-Titanium, V-Vanadium, Cr-Chromium, Mn- Manganese, Fe-Iron, Co-Cobalt, Ni-Nickel, Cu-Copper, Zn-Zinc
Molecule Group of atoms joined together. It is the smallest particle of an element or compound that can exist independently
Sigma Bond Covalent bond formed by the head-on overlap of the two atomic orbitals.
Electronegativity Relative attraction that an atom in a molecule has for the shared pair of electrons in a covalent bond
Electronegativity difference Ionic bond is difference of greater than 1.7 Covalent bond is a difference less or equal than 1.7
Valency of an element is defined as the number of atoms of hydrogen with which each atom of an element can combine
Van der waals forces are weak attractive forces between molecules resulting from the formation of temporary dipoles
Dipole-Dipole forces Forces of attraction between the negative pole of one molecule and the positive pole of another
Hydrogen bond Arises when and atom of hydrogen is bonded to a smal electronegative atom like nitrogen, oxygen or flourine
Name one atom that hydrogen bonds with to form a hydrogen bond? Oxygen, nitrogen or flourine
Created by: mmcevoy89
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