Question

How many of each subatomic particle does a stable Sodium (Na) atom have?





(1 point)
Responses

23 protons, 12 neutrons, and 23 electrons
23 protons, 12 neutrons, and 23 electrons

11 protons, 11 neutrons, and 12 electrons
11 protons, 11 neutrons, and 12 electrons

11 protons, 12 neutrons, and 11 electrons
11 protons, 12 neutrons, and 11 electrons

34 protons, 11 neutrons, 11 electrons
34 protons, 11 neutrons, 11 electrons
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Answer 1

A stable sodium (Na) atom has:

- **11 protons** (this defines it as sodium),
- **12 neutrons** (for the most common isotope, sodium-23),
- **11 electrons** (to balance the charge of the protons in a neutral atom).

So, the correct response is:

**11 protons, 12 neutrons, and 11 electrons.**