Difference between giant ionic structure, giant covalent structure and simple molecular structure and also covalent bonds and ionic bonds answer it's urgent: (

Which statement best describes the relationship between period and frequency of light waves? a) in wave b the period increases and the frequency decreases from wave a. b) in wave a the period increases and the frequency decreases from wave b. c) in wave b the period is shorter and the frequency is greater than in wave a. d) in wave a the period is shorter and the frequency is greater than in wave b.

What best discribes the relationship between wavelength and frequency in a electromagnetic wave

Elements in group 2 are all called alkaline earth metals. what is most similar about the alkaline earth metals?