Pour produire de l'électricité, quel est l'avantage d'utiliser: l'énergie nucléaire plutôt que celle provenant des centrales thermiques?

Which of the following statements is true about planck’s law

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.

Write the chemical formula for a compound that is made of an element from group 1 and an element from group 17