() — sodium (chemistry)

Definition

noun
sodium (chemistry)

Examples

  • Yán lǐ miàn yǒu hěn duō nà.
    There is a lot of sodium in salt.
  • Rén tǐ xū yào shǎo liàng de nà lái wéi chí jiàn kāng.
    The human body needs a small amount of sodium to maintain health.
  • Zhè zhǒng diàn chí hán yǒu jīn shǔ nà.
    This type of battery contains metallic sodium.

Origin

Sound + meaning
六书liùshū
形声xíngshēng

Most characters — around four in five — are built this way: one part hints at the meaning, the other at the pronunciation.

This origin belongs to the traditional form 鈉; 钠 is its simplified writing.

Meaning part形符xíngfú
jīnmetal
Sound part声符shēngfú
nèi
The sound has drifted apartThe sound part was a clue two thousand years ago — it often still helps, but not always.

The traditional form 鈉 uses 金 for metal and 內 to give its sound. The simplified 钠 is a later shorthand.

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