Question

protons: 14
neutrons: 15
electrons: 14

Explanation:

Assuming the problem is to find the mass number (though the question isn't fully stated, a common related problem is calculating mass number). Here's the step - by - step solution:

Step1: Recall mass number formula

The mass number ($A$) of an atom is the sum of the number of protons ($p$) and neutrons ($n$) in its nucleus. The formula is $A=p + n$.

Step2: Substitute values

We know that the number of protons $p = 14$ and the number of neutrons $n = 15$. Substituting these values into the formula, we get $A=14 + 15$.

Step3: Calculate the sum

$14+15 = 29$.

Answer:

If the problem was to find the mass number, the answer is 29.

(If the actual problem was different, for example, identifying the element (which would be Silicon, as atomic number (number of protons) is 14), the answer would be Silicon. But based on the given data and a common related calculation, the mass number calculation is provided above.)