main quantum number

例句：

1. 1. In the study of quantum mechanics, the main quantum number is crucialfor understanding the behavior of atoms and molecules.
   在量子力学研究中，主量子数对于理解原子和分子的行为至关重要。
2. 2. Themain quantum number determines the energy levelsof an atom, which in turnaffects its chemical properties.
   主量子数决定了原子的能量级，这反过来又影响其化学性质。
3. 3. The scientists have discovered thatthe main quantum number can be used topredict the stability of a compound.
   科学家们发现，主量子数可以用来预测化合物的稳定性。