Structure And Bonding Flashcards
Relative isatopic mass
The mass of an atom of a single is atop r relative to 1/12 of a carbon 12 atom
Relative atomic mass
The weighed mean mass of an atom of an element relative to 1/12th of a Carbon 12 atom
Relative formula mass
Working out calculations for compounds with giant structures
Relative molecular mass
The term used for calculating compounds that are simple molecules
Metallic bonding
The electrostatic force of attraction between a lattice of +ve charged ions and free delocalised electrons
Covalent bonding
The bond formed between atoms that share electrons. Atoms that share electrons to gain a full outer shell of electrons
Ionic bonding
The bond formed between +ve and -về charged ions due to electrostatic forces of attraction between them
Ionic equations
The chemical reaction that only lists those species participating in the equation
Isatopes
An element with same number of protons and electrons but different number of neutrons and different mass
Electronegativity
The ability of an atom to attract a pair of electrons in a covalent bond
London forces
Weakest intermolecular force that forms between neighbouring non- polar molecules that only has affect over a couple nanometres
Permanent dipole dipole forces
Intermolecular forces 10x stronger than london forces form between 2 polar covalent molecules
Hydrogen bonding
Only occurs when a hydrogen atom is covalently bonded to and oxygen nitrogen or fluorine atom
Electron pair repulsion theory
The shape of a molecule is determined by the electrons pair surrounding the central atom
Linear bond
Angle- 180•
Bond pairs- 2
Lone pairs- 0
Example- CL-Be-CL
