The formula for a compound containing sodium and oxide ions would contain... This compound would have an overall ... charge.

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.

Which metals are called noble metals

What is the most common reason for matter changing its state?