How many valence electrons are in beryllium?
Understand the Problem
The question is asking for the number of valence electrons in beryllium (Be). Valence electrons are the electrons in the outermost shell of an atom, and for beryllium, which is in group 2 of the periodic table, the answer can be determined based on its electron configuration.
Answer
2 valence electrons
The final answer is that Beryllium has 2 valence electrons.
Answer for screen readers
The final answer is that Beryllium has 2 valence electrons.
More Information
Beryllium has an atomic number of 4 and its electron configuration is 1s² 2s², indicating it has 2 valence electrons in the 2s subshell.
Tips
A common mistake is thinking valence electrons are always in the outermost shell irrespective of their energy levels; always check the electron configuration.
Sources
- Valence Electrons In Beryllium - assets.ctfassets.net
- Beryllium has how many valence electrons in its last ring? - Socratic - socratic.org
- How to Find the Valence Electrons for Beryllium (Be) - YouTube - youtube.com
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