质子数 zhì zǐ shù

proton number in nucleus; atomic number

Word data

HSK Not in HSK
Frequency Unknown

Definitions

  1. 1. proton number in nucleus
  2. 2. atomic number

Characters

Character Meaning
质 zhì HSK 4
quality; nature; to question
子 zǐ HSK 1
(noun suffix); son; child
数 shù HSK 3
number; several; figure