Solution:
The outermost shell for elements of Period 2 is the L shell.The modern periodic table is the systematic arrangement of the elements in a tabular form in the increasing order of their atomic numbers. The position of the elements determines their chemical properties of the elements. The L-shell is the second innermost shell of electrons surrounding an atomic nucleus. The L shell can hold upto 10 electrons. The elements of period 2 consist of two valence shells, K-shell and L-shell. Period 2 of the periodic table starts with the element lithium, which contains 3 electrons, and ends with neon which contains 10 electrons.
