What would the symbol be for a particle that has 11 protons, 12 neutrons, and 10 electrons?
Sodium has an atomic number of 11. The number of protons determines the atomic number. The 11 protons makes an atomic number of 11.
The 11 protons have a charge of +11 while the 10 electrons have a charge of -10. This results in a net charge of +1
The mass of an atom is the sum of the number of protons and neutrons. 11 protons and 12 neutrons results in a total mass of 23
To be totally correct the symbol could be written as