Which of the following is referenced in the modern "periodic law" A. Atomic mass

B. Electron configuration

C. Wavelengths of radiation

D. Atomic number

Based on the position vs. time graph which velocity vs. time graph would correspond to the data

What is calcium oxide+diphosphorus pentoxide--> calcium phosphate balanced

What is the typical rotational frequency frot for a molecule like n2 at room temperature (25∘c)? assume that d for this molecule is 1å=10−10m. take the total mass of an n2 molecule to be mn2=4.65×10−26kg. you will need to account for rotations around two axes (not just one) to find the correct frequency. express frot numerically in hertz, to three significant figures.