What Is the Average Atomic Mass of an Element (X)

question 78

Short Answer

What is the average atomic mass of an element (X) that contains 78.99% X-24 (23.985 amu), 10.00% X-25 (24.986 amu), and 11.01% X-26 25.9826 amu)? What is the identity of the element?

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Definitions:

Reserve Requirement

The minimum fraction of customer deposits and notes that each commercial bank must hold as reserves rather than lending out, set by the central bank.

Demand Deposits

Bank accounts from which money can be withdrawn at any time without any notice to the institution.

Time Deposits

Banking or financial instruments that require the holder to keep the money deposited for a fixed term or period of time, often offering higher interest rates than savings accounts.

Federal Reserve Banks

A system of 12 banks in the United States that serve as the central banking system, responsible for implementing monetary policy, regulating banks, and ensuring the stability of the financial system.