hydrogen bond
Pronunciation
Noun
B2 Upper-intermediate
Quick answer
A relatively weak attraction between a hydrogen atom in one molecule and an electronegative atom, such as oxygen or nitrogen, in another.
Usage notes
Hydrogen bonds are weaker than covalent bonds but strong enough, in large numbers, to hold DNA's double helix together.
Test yourself
Which word fits the gap? "_____ between water molecules are the reason water has such a surprisingly high boiling point for such a small molecule."
Answer: hydrogen bond
In your own words, what does "hydrogen bond" mean?
A relatively weak attraction between a hydrogen atom in one molecule and an electronegative atom, such as oxygen or nitrogen, in another.
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