In the last national census, or population count, Hispanics,or Latinos, made up twelve percent of the total population.

VOA: special.2010.05.07

So we have a total of 2, 4, 6, 8, 10 valence electrons, so I'll make sure I count to 10 as we fill up our molecular orbitals here.

我们一共有2，4，6，8，10个价电子，所以我一边填一边要确认,我数到10。

麻省理工公开课 - 化学原理课程节选