This question refers to the European Union expansion and end-game. EU members stand to gain expanded labor, economic free trade areas, and expanded tax bases. Possible risks include Immigration waves from Southern and Southeastern Europe, the Former Soviet Republics, and the Middle East and Northern Africa due to the EU's geographic frontier.
Lose
Neither lose nor gain.
gain
Atoms typically do not lose protons because that would change the identity of the element. Instead, atoms can lose or gain electrons to form ions with a different charge. Protons are not generally lost by atoms in chemical reactions.
If you gain internal validity do you lose external validity
Most substances lose or gain energy when their temperature changes.
When atoms lose or gain electrons, they form ions. These are charged particles.
Wisdom.
No. Atoms of an element lose or gain electrons to form ions.
if anything it would be reasonable to expect it to lose mass.
No, when you gain life, your opponent does not lose life in the process.
Krypton tends to neither lose nor gain electrons since it has a full outer electron shell, making it stable.