Question

An atom of sodium-23 (Na-23) has a net charge of +1. Identify the number of protons, neutrons, and electrons in the atom. Then, explain how you determined the number of each type of particle. Use the periodic table to help you.

Answer 1

Protons = 11 Electrons = 10 Neutrons = 12

Step-by-step explanation:

Sodium's atomic number is 11. The atomic number is determined by the number of protons in an atom. Since protons have a charge of +1 you would need 1 less electron than proton. Finally, to find the number of neutrons, you subtract the atomic number FROM the atomic mass. The atomic mass of Na23 is 23. Subtract 11 from 23 and you get 12.