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Nitella [24]
3 years ago
9

Find the missing angle please!!

Mathematics
1 answer:
beks73 [17]3 years ago
8 0
Step 1: All angles in a triangle must add up to 180! Therefore, in the upper triangle, add up the two you know 85+35=120 so the missing angle is 60.
Step 2: Bottom triangle. Your new angle above (60) is the pair of the opposite angle - so it too is 60. So now you know 2 of the 3 angles: 60+64=124 Subtract that from 180 and you get 56...which is the answer for ?
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A second important result is that electrons will fill the lowest energy states available. This would seem to indicate that every
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  • 8

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1)<u> Principal quantum number, n = 2</u>

  • n is the principal quantum number and indicates the main energy level.

<u>2) Second quantum number, ℓ</u>

  • The second quantum number, ℓ,  is named, Azimuthal quantum number.

The possible values of ℓ are from 0 to n - 1.

Hence, since n = 2, there are two possible values for ℓ: 0, and 1.

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<u>3) Third quantum number, mℓ</u>

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The possible values for mℓ are from - ℓ to + ℓ.

Hence, the poosible values for mℓ when n = 2 are:

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<u>4) Fourth quantum number, ms.</u>

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Therfore the full set of possible states (different quantum number for a given atom) for n = 2 is:

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  • (2, 0, 0, -1/2)
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  • (2, 1, 1, +1/2)
  • (2, 1, 1, -1/2)

That is a total of <u>8 different possible states</u>, which is the answer for the question.

8 0
3 years ago
I need help on these 3
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What do you need help with? it helps us to know the question!
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