What is B plus protons and electrons?

B (boron) has an atomic number of 5, which means it has 5 protons in its nucleus. In a neutral atom, the number of electrons equals the number of protons, so a neutral boron atom also has 5 electrons. Therefore, B plus protons and electrons refers to the total count of these particles, which would be 5 protons and 5 electrons in a neutral boron atom.