Which hydride breaks the trend?

The boiling points of the hydrides of groups 15, 16 and 17 are stored in three lists, from period 2 to period 5. In each group, the hydride of period 2 can form hydrogen bonds. You will find how far it stands above the hydride of period 3, and which group shows the biggest jump.

The idea. Without hydrogen bonds, the lightest hydride would boil lowest. A big positive jump from period 3 to period 2 shows strong hydrogen bonding.

Your tasks.

1. Set jump to a dictionary: for each group, the boiling point of period 2 minus that of period 3.
2. Set biggest to the group with the largest jump.
3. Set all_above to True if every period 2 hydride boils above its period 3 hydride.