Examen 13/12/2017 Flashcards
The attraction of atoms, ions or molecules in a compound;they are made through the sharing of electrons or the attraction of ions
Chemical bond
says that atoms tend to gain, lose or share electrons in order to gain full of 8 valence electrons
Octet rule
electrons in the atom’s outermost levels.
Valence electrons
a positive ion
cation
a negative ion
anion
which types of chemical bonds exist?
Ionic
Covalent
Metallic
Hydrogen
Which types of covalent bonds exist?
Non-polar
Polar
Coordinate
.
: Cl :
Lewis electron diagram
It is the force that holds ions together with oppsoite charges.
Ionic Bond
Attraction force between non-metals and the pair of electrons that is shared between them
Covalent bond
Number and types of atoms that form a molecule
molecular formula
Distribituion of valence electron in the atoms using the Lewis structure
Electronic formula
Structure of the molecule with its bods represented by lines
Condensed, structural formula
How do you know if a covalent bond polar or non polar?
if the result is:
≤0.4 it is non-polar
>0.4 and < 1.7 it is polar
>1.7 it is ionic
Bond where the electrostatic force between the atoms create a ‘‘sea of electrons’’
metallic bond
