The arrow is pointing to sodium's: A) Number of neutrons.
B) Number of valence electrons
C) Combined number of neutrons and protons
D) Combined number of electrons and protons

Awave has a wavelength of 15 mm and a frequency of 6 hertz. what is its speed?

Which of the following graphs have the same wavelengths

Drag the tiles to the boxes to form correct pairs. match the causes with their effects cause: tectonic plates at transform boundaries experience friction. cause: tectonic plates at transform boundaries experience friction. cause: earth is covered by a crust that runs miles deep.