timmycronin45 timmycronin45

19-01-2023
Chemistry

contestada

Calculate the frequency of the light emitted by a hydrogen atom during a transition of its electron from the n = 4 to the n = 1 principal energy level. Recall that for hydrogen En = –2.18 × 10–18 J(1/n2).

Respuesta :

Otras preguntas

Twenty-five teenagers were surveyed about food. Five more preferred pizza than steak. Write and solve system of equations to find out how many preferred pizza.

what is another possible ratio 2:5

What phase does the nucleus disappear and the nuclear envelope break down

50 is 15% of what number?

Which place valued writing, art, and fine workmanship? A. Egypt B. Mesopotamia C. Both D. Neither

Billy goes to the store. He has $90. He wants to purchase a leather jacket for $45, a hat for $10, and the rest on jeans. Each pair of jeans cost $35. Write an

80 is what percent of 320

A lawnmower runs on gasoline.what type of energy transformation takes place in its engine?

Please help!! 30 points if you answer. Answer ASAP!!Which word phrases can be modeled by the expression? Choose exactly two answers that are correct. A.ten less

which of the following describes important Buddhist beliefs? A.Upanishads B.Vedas C.Ramayana D.Four noble truths