10. Which element has 2 valence electrons in its outermost energy level? a. Cesium
b. Magnesium
C. Boron
d. Argon

Which boundary is associated with the building of the himalaya mountains? convergent transform divergent hot spot

This is the number of complete movements of a wave per second.

Select the best definition for wavelength. the height of an oscillating electromagnetic wave the rate at which electromagnetic waves oscillate. the distance between two crests of an electromagnetic wave. the oscillations of electric and magnetic fields select the best definition for frequency. the oscillations of electric and magnetic fields. the height of an oscillating electromagnetic wave. the distance between two crests of an electromagnetic wave. the rate at which electromagnetic waves oscillate