covalent bonds Flashcards
1
Q
between which elements are covalent bonds formed ?
A
covalent bonds are formed between 2 non-metals
2
Q
what happens to the atoms in order to gain a full outer shell ?
A
the atoms share electrons
3
Q
what is meant by a dative covalent bond / co-ordinate bond ?
A
is a bond where both the electrons come from the same species
4
Q
how are dative covalent bonds often represented by >
A
by an arrow ->
with the arrow head pointing away from the element that is providing the lone pair
5
Q
is a dative covalent bond different than a standard covalent bond ?
A
no, a dative covalent bond is identical to other covalent bonds
- all the bonds in the ammonium ion are the same length
-all of the bonds have the same average bond enthalpy
