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3 years ago

I need help please, will mark you the brainliest.

Chemistry

1 answer:

SOVA2 [1]3 years ago

4 0

Explanation:

The orbital diagram of an electron with eight electron is attached. Since the 2p orbitals are filled using the maximum space available instead of pairing the electrons, this is in accord with Hund's rule.

When filling orbitals, you should put one electron in each box. After all of the boxes in the orbital have one electron in each, you can then put the second electron into each of the boxes.

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The electron in a hydrogen atom, originally in level n = 8, undergoes a transition to a lower level by emitting a photon of wave

timofeeve [1]

Explanation:

It is given that,

The electron in a hydrogen atom, originally in level n = 8, undergoes a transition to a lower level by emitting a photon of wavelength 3745 nm. It means that,

$n_i=8$

$\lambda=3745\ nm$

The amount of energy change during the transition is given by :

$\Delta E=R_H[\dfrac{1}{n_f^2}-\dfrac{1}{n_i^2}]$

And

$\dfrac{hc}{\lambda}=R_H[\dfrac{1}{n_f^2}-\dfrac{1}{n_i^2}]$

Plugging all the values we get :

$\dfrac{6.63\times 10^{-34}\times 3\times 10^8}{3745\times 10^{-9}}=2.179\times 10^{-18}[\dfrac{1}{n_f^2}-\dfrac{1}{8^2}]\\\\\dfrac{5.31\times 10^{-20}}{2.179\times 10^{-18}}=[\dfrac{1}{n_f^2}-\dfrac{1}{8^2}]\\\\0.0243=[\dfrac{1}{n_f^2}-\dfrac{1}{64}]\\\\0.0243+\dfrac{1}{64}=\dfrac{1}{n_f^2}\\\\0.039925=\dfrac{1}{n_f^2}\\\\n_f^2=25\\\\n_f=5$

So, the final level of the electron is 5.

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3 years ago

A farmer selectively breeds tomatoes to be shipped to grocery stores across the United States. Which of the following genetic tr

Studentka2010 [4]

Answer:

Explanation:

It would definitely affect size because breeding will change that trait

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3 years ago

Explain whether or not you expect the chaparral biome to be sensitive to the loss of a single species.

aleksley [76]

Answer:

See the answer below

Explanation:

The chaparral biome is a temperate biome with a characteristic high temperature and dryness during summer and mild rainy winters and springs. The biome can be found in relatively small amounts in the major continents of the world with its rich plant and animal diversity who have successfully adapted to the conditions of the biome.

Due to the high biodiversity of the chaparral biome, <u>one would expect it to be resilient to the loss of a single species.</u> <em>The more the biodiversity of a biome or community, the more resilient such biome or community would be to the loss of species and lower the biodiversity, the more sensitive the community would be to the loss of species. </em>

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3 years ago

A) How many grams of water are produced when 2.50 g of aluminum

egoroff_w [7]

The correct answer is 13 I just did it bro

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3 years ago

10 points please please help

Inga [223]

Your answer would be respiration. This would be your answer because, plants take in carbon dioxide, and animals, including humans, breath oxygen. I hope this had helped you out.

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3 years ago