The atomic number of lithium (Li) is 3.
Thus, its electronic configuration is : 1s^{2}2s^{1}.
Lithium cation is formed when lithium atom loses one of its valence electon.
Hence, [Li+] = 1s^{2}
∴ Lewis dot structure of Li is :
Li ·
and lewis dot structure of Lithium cation is:
[Li]+
Answer:
Li⁺
Explanation:
The atomic number of lithium is 3, which means that it has 3 protons and 3 electrons. The electron configuration is [He] 2s¹ and its Lewis structure is Li·
When lithium loses an electron to form lithium cation, its Lewis structue is Li⁺ and it acquires the electron configuration of Helium: 1s².
