What is the electron configuration for Be2+ ions?
Answer: The electron configuration for Be2+ ions is 1s2.
Explanation: Be2+ ions are formed when a beryllium atom (Be) loses two electrons. Beryllium, with an atomic number of 4, normally has an electron configuration of 1s2 2s2. However, when it loses two electrons to become a Be2+ ion, it loses the two electrons from the 2s subshell. This leaves it with an electron configuration of 1s2, as the 2s subshell is now empty. Learn More…