10 Most Famous Soccer Stadiums in the World. The Camp Nou with its capacity of 99,354 is the largest stadium in Europe and also the fourth largest soccer stadium in the world. It is situated in Barcelona, Catalonia, Spain, and is the home of Spanish club Barcelona since 1957.
Electron Affinity Trends. Electron Affinity is the energy associated with the addition of an electon to a gaseous atom. Example: Notice the sign on the energy is negative. This is because energy is usually released in this process, as opposed to ionization energy, which requires energy. A more negative electron affinity corresponds to a greater attraction for an electron.
However, proton affinities are conventionally quoted with the opposite sign convention from most other thermodynamic properties, a positive E pa indicating a release of energy by the system. This is the same sign convention as is used for electron affinity.o a first approximation, the proton affinity of a base in the gas phase can be seen as offsetting (usually only partially) the extremely favorable hydration energy of the gaseous proton (Î´ E = â1530 kJ/mol), as can be seen in the following estimates of aqueous acidity: