Please answer the question above.

Neils bohr believed that electrons orbited the nucleus in different energy levels, based on strong support from

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 is the molar mass of a gas that has density of 2.054 g/l