Answer :
Final answer:
A neutral atom of Sodium and Magnesium have the same number of protons and electrons, but different atomic masses.
Explanation:
An atom of Sodium is neutral when it has the same number of protons and electrons. Sodium has an atomic number of 11, which means it has 11 protons and 11 electrons. Its atomic mass is approximately 23 amu. Magnesium, on the other hand, has an atomic number of 12, meaning it has 12 protons and 12 electrons. Its atomic mass is approximately 24 amu.
Therefore, from their atomic numbers and atomic masses, we can conclude that both a neutral atom of Sodium and a neutral atom of Magnesium have the same number of protons and electrons, but they have different atomic masses.
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