How many valence electrons are in Be2+ ions?
Answer: Be2+ ions have 0 valence electrons.
Explanation: Be2+ ions are formed when a beryllium atom (Be) loses two electrons. Beryllium, with an atomic number of 4, normally has 2 valence electrons in the 2s subshell. However, when it loses two electrons to become a Be2+ ion, it loses both of its valence electrons from the 2s subshell. As a result, Be2+ ions have 0 valence electrons. Read More…