Question

of protons, neutrons, and electrons of the stable boron shown above. protons neutrons electrons

Explanation:

Step1: Recall atomic number concept

The atomic number of boron (B) is 5. In a neutral atom, the number of protons is equal to the atomic number. So, the number of protons = 5.

Step2: Recall electron - proton relationship in neutral atoms

In a neutral atom, the number of electrons is equal to the number of protons. Since the number of protons is 5, the number of electrons = 5.

Step3: Consider common isotope and neutron calculation

The most common stable isotope of boron is boron - 11. The mass number is 11. The mass number is the sum of protons and neutrons. So, the number of neutrons = mass number - number of protons = 11 - 5=6.

Answer:

Protons: 5
Neutrons: 6
Electrons: 5