Calculate the number of proton, neutrons and electrons in `._(19)^(39) K` .

Explanation

To calculate the number of protons, neutrons, and electrons in the potassium isotope denoted as \( _{19}^{39}K \), we can follow these steps:

### Step 1: Identify the Atomic Number
The atomic number of potassium (K) is given as 19. The atomic number represents the number of protons in the nucleus of an atom.

- **Number of Protons**:
\[
\text{Number of Protons} = \text{Atomic Number} = 19
...