Answer:
11 protons.
Step-by-step explanation:
Na+ is the chemical symbol for the sodium ion. In its neutral state, sodium has 11 protons, as indicated by its atomic number on the periodic table. The atomic number represents the number of protons in an atom of an element. However, when sodium loses one electron to form a positive ion, it becomes Na+. Since protons carry a positive charge, the number of protons in Na+ remains the same as in the neutral sodium atom, which is 11. Therefore, Na+ has 11 protons.
To summarize:
- Sodium (Na) in its neutral state has 11 protons.
- When sodium loses one electron to form a positive ion (Na+), it still has 11 protons.