![]() The Boron atom along with its atomic number, electronic configuration, and atomic mass is represented as follows in the Periodic table: The Boron family is located in the 13 th group of the Periodic table: ![]() The boron atom has 6 neutrons and 5 protons in its nucleus, and 5 electrons revolve around the nucleus in two shells named K and L shells. The names assigned to the shell are K, L, M, N, etc., or 1, 2, 3, 4, 5, etc. The shell closest to the nucleus has minimum energy and is also known as the ground state for an atom, while the shell farthest from the nucleus has the highest energy.īohr gave numerical as well as alphabetical names to these shells with the lowest value assigned to the shell with the lowest energy i.e. That is why they are also known as energy levels.
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