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Triss [41]
3 years ago
7

Boron (B): 1sE2sF2pG E = F = G =

Chemistry
2 answers:
Shkiper50 [21]3 years ago
5 0

Answer:

e= 2

f= 2

g= 1

Explanation:

:)

stellarik [79]3 years ago
3 0

Answer:

E = 2

F = 2

G = 1

Explanation:

Just did edgenuity.

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Which atom, selenium (Se) or Arsenic (As), has the higher electron affinity and why?
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Answer:

5. Selenium, because it does not have a stable, half-filled p subshell and adding an electron does not decrease its stability.

Explanation:

Electron affinity is the amount of energy released when an isolated gaseous atom accepts electron to form the corresponding anion.

Selenium:-

The electronic configuration of the element is:-

[Ar]3d^{10}4s^24p^4

Arsenic:-

The electronic configuration of the element is:-

[Ar]3d^{10}4s^24p^3

The 4p orbital in case of arsenic is half filled which makes the element having more stability as compared to selenium.

Thus, selenium has higher electron affinity because adding electron does not decrease the stability as in case of arsenic.

8 0
3 years ago
What has an atomic number of 1
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3 0
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Elliptical galaxies are shaped like a spheriod, or elongated sphere. In the sky, where we can only see two of their three dimensions, these galaxies look like elliptical, or oval, shaped disks. The light is smooth, with the surface brightness decreasing as you go farther out from the center. Elliptical galaxies are given a classification that corresponds to their elongation from a perfect circle, otherwise known as their ellipticity. The larger the number, the more elliptical the galaxy is. So, for example a galaxy of classification of E0 appears to be perfectly circular, while a classification of E7 is very flattened. The elliptical scale varies from E0 to E7. Elliptical galaxies have no particular axis of rotation.

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5 0
3 years ago
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Minchanka [31]

Answer:

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Explanation:

Try looking up on the internet-

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3 0
3 years ago
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Inessa [10]

Answer:

I think the answer is C- radiation

Explanation:

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8 0
2 years ago
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