Question

type the number of each subatomic particle into the blanks: protons protons 5 7 b n boron nitrogen 10.81 14.00 neutrons neutrons? electrons electrons?

Explanation:

Step1: Recall atomic number concept

The atomic number is equal to the number of protons. Boron (B) has an atomic number of 5, so the number of protons in boron is 5. Nitrogen (N) has an atomic number of 7, so the number of protons in nitrogen is 7.

Step2: Recall electron - proton relationship in neutral atoms

In a neutral atom, the number of electrons is equal to the number of protons. So, boron has 5 electrons and nitrogen has 7 electrons.

Step3: Calculate number of neutrons

The mass number (rounded from the atomic mass) is approximately the sum of protons and neutrons. For boron, if we assume the most common isotope with mass number 11 (since the atomic mass is 10.81), the number of neutrons = mass number - number of protons = 11 - 5 = 6. For nitrogen, with an atomic mass of 14.00 and assuming the most common isotope with mass number 14, the number of neutrons = 14 - 7 = 7.

Answer:

Boron: Protons: 5, Neutrons: 6, Electrons: 5
Nitrogen: Protons: 7, Neutrons: 7, Electrons: 7