An atom of sodium contains 11 protons, 12 neutrons, and 11 electrons.
An atom of sodium (Na) with an atomic number of 11 has 11 protons, and the atomic number represents the number of protons in an atom. The mass number, 23, represents the total number of protons and neutrons in the nucleus. Therefore, the number of neutrons can be calculated by subtracting the number of protons from the mass number, which gives us 23 - 11 = 12 neutrons.
Since sodium is a neutral atom, the number of electrons is equal to the number of protons. Therefore, one atom of sodium contains 11 electrons.
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Answer:
Carbon-14 has 8 neutrons.
Explanation:
To find the number of neutrons when given the atomic mass and the protons, all you have to do is subtract the number of protons from the atomic mass.