4. Magnesium has three isotopes with mass numbers 24, 25, and 26. (a) Write the complete chemical symbol (superscript and subscript) for each. (b) How many neutrons are in an atom of each isotope?

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BrainlyModIsBusy · Answer

(a) Complete chemical symbol format: ⁿ₁₂Mg, where 12 is the atomic number of magnesium.Magnesium-24: ²⁴₁₂MgMagnesium-25: ²⁵₁₂MgMagnesium-26: ²⁶₁₂Mg(b) Number of neutrons = Mass number − Atomic number²⁴Mg: 24 − 12 = 12 neutrons²⁵Mg: 25 − 12 = 13 neutrons²⁶Mg: 26 − 12 = 14 neutrons

Answered by BrainlyModIsBusy | 2025-07-31

4. Magnesium has three isotopes with mass numbers 24, 25, and 26. (a) Write the complete chemical symbol (superscript and subscript) for each. (b) How many neutrons are in an atom of each isotope?

Answer (1)

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