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liq [111]
2 years ago
8

I really need help with the first two fill in the blanks

Chemistry
1 answer:
postnew [5]2 years ago
3 0
Not sure about the first one , but the second one is ONE
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Check the explanation

Explanation:

When talking about our universe there are 5 d orbitals. The element of first transition series moves away from the universal principles of Hund's rule and Aufbav's principle. So in order to attain stability these elements tend to form half or full filled orbitals.

In our universe the ground state electronic configuration of sixth transition metal, Iron (Fe) :  [Ar] 3d^{6} 4s^{2}

and the electronic configuration of seventh transition metal, Cobalt (Co) :  [Ar] 3d^{7} 4s^{2}

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In universe L there are seven orbitals.

Ground state electronic configuration of sixth and seven transition element.

Sixth transition metal: [Ar] 3d^{7} 4s^1 or [X] 3d^{7} 4s^1

Seventh transition metal: [Ar] 3d^{7} 4s^{2}or [X] 3d^{7} 4s^{2}

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3 years ago
Distinguish between sugar and non-sugar with examples.
kap26 [50]

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A sample of silver metal contains 1.91 X 1021 atoms. How many moles of silver is<br> this?
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1.91×1021/6.023×10^23

Explanation:

need thanks and make me brainiest if it helps you

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