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6 eV. The binding energy of the second n = 2) level of the hydrogen atom is
Interest Rate
The percentage charged or earned on a principal sum of money or an investment over a specified period of time.
Net Capital Outflow
The difference between the domestic purchases of foreign assets and the foreign purchases of domestic assets.
Exchange Rate
The rate at which one currency can be exchanged for another.
Affordability
A measure of a person's ability to purchase goods or services, typically considering their income and the price of the goods or services.
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