weak bases

[Ella Kim 3E]

Why can we assume that a nitrogen with a lone pair is a weak base? Are there any other types of atoms that follow a similar rule to make it easier to differentiate between strong and weak bases?

[606158388]

The reason that nitrogen is automatically considered a weak base is because it has lone pairs. To be a base, it has to be able to accept protons while an acid donates protons. Nitrogen with a lone pair is more likely to donate protons rather than accept protons, making it a weak base. This is a trend that most elements follow, I believe.

[AlexandraHernandez3E]

The lone pair on N atoms is available (diffuse) to pick up a proton. you can assume that most atoms with a Nitrogen lone pair will be assumed as a weak base because that acts as an acceptor.