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Atomic mass is very close to mass number but with some deviation in the decimal places.
⚖️The mass number represents the total number of protons and neutrons in an atom and is always a whole number.
📉The atomic mass is the weighted average of all isotopes of an element, which includes the natural abundance of each isotope.
🧪This value is often close but not identical to the mass number due to isotopic variation and binding energy differences.
🔬Therefore, the atomic mass is typically expressed with decimal points, reflecting its calculated nature, unlike the integer-based mass number.
📌Core Message
Atomic mass is a weighted average that closely approximates the mass number, but includes decimal differences due to isotopes.
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