--The bond between these two elements - Wo and Xy is a covalent bond.

--It is more stable in it's compound form -Wo3Xy. One Xy bonds with 3 Wo.

--The covalent bond changes everyday, but overall , it is at maximum when it first started and with time it decreases and reaches its lowest threshold at around mid time, and then increases again with time and reach maximum . So if u plot a graph --- it's a upward curve..see below.. (please try to imganine this curve by joining the .. dots; I was not able to load the picture and also the line is not perfect, its a zigzag as bond changes everday and follows patterns for time)

Bond

|

|
|..Max                                              ..Max
| ..                                                ..
|   ..                                          ..
|   ..                                     ..
|       ..                          ..
|          ..                        ..
|                 ..         ..
|---------------..---------------------------
                          Min                                  Time

-- there are many Catalyst such as alcohol, money, looks, and many more which affects the bond   depending upon the time and place.

I will post more..........................