Is Be2 paramagnetic or diamagnetic?

Understand the Problem

The question is asking whether the beryllium dimer (Be2) has unpaired electrons, which will determine if it is paramagnetic (if it has unpaired electrons) or diamagnetic (if all electrons are paired). This involves analyzing its molecular orbital configuration.

More Information

Be2 is diamagnetic because it has no unpaired electrons in its molecular orbital configuration.

Tips

A common mistake is confusing Be2 with B2. B2 is paramagnetic, whereas Be2 is diamagnetic due to their different electron configurations.

Sources

• Is Be2 diamagnetic - Chemistry Stack Exchange - chemistry.stackexchange.com
• Is Be2^+ diamagnetic or paramagnetic? - Socratic - socratic.org
• Solved Part B Is Be2 paramagnetic or diamagnetic? - Chegg - chegg.com