It depends on which isotope you are talking about. The stable form of sodium is 23Na, which has 11 protons and 12 neutrons. Isotopes of sodium range from 18Na, with 7 neutrons, to 37Na, with 26 neutrons.
Sodium is a metal element. Mass number of it is 23.
To find the number of neutrons (N) in any nuclide subtract the atomic number (Z) or number of protons from the mass number (A); in the case of sodium-23 there would be 23 - 11 = 12 neutrons.
It has 12 neutrons
APEX
there are 12
there are 20 in a neon atom
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Sodium is atomic number 11, while neon is atomic number 10. We would already expect sodium to be heavier, but the most common stable isotope of sodium has 12 neutrons, and the most common stable isotope of neon has only 10. Since the atomic weight can be approximated by the sum of neutrons and protons (and the number of protons is the atomic number), we can guess that sodium's atomic mass is 23 and neon's is 20.
The answer cannot be determined with atomic weight. You are asking for the number of neutrons in a particular isotope of sodium. You need mass number for the isotope you are interested in, which is probably 23.Assuming you mean atomic number of 11 and a mass numberof 23, there would be 12 neutrons in each atom of this isotope.
It is a radioactive scandium isotope - 43Sc with 21 electrons and protons, and 22 neutrons.
Maing a nuclear bomb, are you? Reask your question after consulting a periodic table.
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sodium has more protons and neutrons. electrons have practically no mass, valence electrons are just outer orbital electrons. sodium has 11 protons, 11 electrons, and 12 neutrons. Mass is 23. neon has 10 protons, 10 electrons, and 10 neutrons. Mass is just 20. The neon atom has 10 protons and 10 neutrons for a mass number of 20. The sodium atom has 11 protons and 12 neutrons for a mass number of 23. The number of valence electrons has no bearing on mass number or atomic weight.
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Vanadium has an atomic no. of 23 and mass number of 51. But it has 28 neutrons and 23 electrons
Protons and neutrons each have an atomic mass of 1 So, 38-15=23 Neutrons
An atom of Sodium weighs the same as 23 protons.
19 Protons and 23 Neutrons
Sodium is atomic number 11, while neon is atomic number 10. We would already expect sodium to be heavier, but the most common stable isotope of sodium has 12 neutrons, and the most common stable isotope of neon has only 10. Since the atomic weight can be approximated by the sum of neutrons and protons (and the number of protons is the atomic number), we can guess that sodium's atomic mass is 23 and neon's is 20.
Every sodium atom has 11 protons, the atomic number of sodium. The isotope with mass number 23 has (23 - 11) or 12 neutrons, because the mass number of an isotope is defined as the sum of the numbers of protons and neutrons in the isotope.
Sulfur is a non metal element. There are 16 electrons in a single atom.
The mass number of this atom is 23, the sum of the number of protons and neutrons.