Electronic Configuration and Atomic Structure

Things to remember

• The distribution of electrons in the various shells of atom is known as the electron configuration.
• Draw a small circle. Write 1P and 0 N. This represent nucleus.
• Draw another circle outside the inner circle. Since, the atom of hydrogen element contain 1 proton, the number of electron will be the same. Therefore, write e or Q the outer circle. This cell is k shell.
• Likewise there are higher shells such as L, M, N which hold different number of electrons.