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Zina [86]
2 years ago
13

Elements found in the same periods of the modern periodic table are _____.

Chemistry
2 answers:
Dennis_Churaev [7]2 years ago
5 0
Try C I’m sorry if you get it wrong but I’m like 90% sure
juin [17]2 years ago
4 0
As far as I know, they are grouped according to increasing atomic number
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The hydrogen emission spectrum is shown below. What is the energy of the
Leviafan [203]

The energy of the 434 nm emission line is 4.58×10¯¹⁹ J (Option A)

<h3>Data obtained from the question </h3>

The following data were obtained from the question:

  • Wavelength (λ) = 434 nm = 434×10¯⁹ m
  • Planck's constant (h) = 6.626×10¯³⁴ Js
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<h3>How to determine the energy </h3>

The energy of the 434 nm emission line can be obtained as follow:

E = hv / λ

E = (6.626×10¯³⁴ × 3×10⁸) / 434×10¯⁹ 9.58×10¹⁴

E = 4.58×10¯¹⁹ J

Thus, the energy of the 434 nm emission line is 4.58×10¯¹⁹ J

Learn more about energy:

brainly.com/question/10703928

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