Question

the image shows the periodic grid for potassium. how many protons are found in a potassium atom? impossible to tell 19 20 39

Explanation:

Step1: Recall the atomic number definition

The atomic number of an element is equal to the number of protons in its atom.

Step2: Identify the atomic number from the periodic grid

In the periodic grid for potassium (\(K\)), the atomic number is \(19\).

Answer:

\(19\)