The statement is True.
To understand why, we need to consider the electron configuration of lithium (Li) first. Lithium has an atomic number of 3, which means it has 3 electrons in its neutral atom configuration: 1s2 2s1. When lithium loses one electron to form Li+, it loses the single electron in the 2s orbital. Thus, it is left with a total of 2 electrons.
These remaining 2 electrons fill the 1s orbital, resulting in an electron configuration of 1s2 for Li+. In summary, Li+ does indeed have the electron configuration of 1s2, making the statement true.