Hydrogen Bond - English Definition & Meaning

Definition

A hydrogen bond is a weak electrostatic attraction between a hydrogen atom bound to a highly electronegative atom (like oxygen or nitrogen) and another electronegative atom nearby. Think of it like a weak magnet pulling two things together.🧲 It's not a true chemical bond like a covalent bond, but it's still a significant force. Hydrogen bonds are responsible for many of water's unique properties, like its high boiling point and surface tension. They also play a crucial role in stabilizing the structure of proteins and DNA. Unlike stronger bonds, they break and reform easily.

Etymology

The concept of the hydrogen bond was first described by Gilbert N. Lewis in the early 20th century. The name "hydrogen bond" clearly indicates the involvement of a hydrogen atom in the interaction. It reflects the observation that hydrogen atoms, when bonded to highly electronegative atoms, can form an additional attractive force. The understanding of hydrogen bonds revolutionized the understanding of molecular interactions in chemistry and biology.

Related Words

Examples

• "Hydrogen bonds hold the two strands of DNA together."
• "Water's high boiling point is due to hydrogen bonds."
• "Hydrogen bonds are weaker than covalent bonds."
• "Protein folding is influenced by hydrogen bonds."

Encouragement

Hydrogen bonds are essential for understanding how molecules interact, especially in biology. Use "hydrogen bond" to demonstrate your grasp of molecular interactions. You'll sound like a biochemistry whiz! 👩‍🔬

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