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solmaris [256]
4 years ago
10

Electronic configuration for Cr, Cu, Cr+2, Cu+2, Mn+2

Chemistry
2 answers:
Zanzabum4 years ago
8 0
Chromium (Cr): 2, 8, 8, 6
Copper (Cu): 2, 8, 8, 11
Chromium+2 (Cr+2): 2, 8, 8, 4 (if the ion retains a positive charge then the amount of electrons will decrease)
Copper+2 (Cu+2): 2, 8, 8, 9
Manganese+2 (Mn+2): 2, 8, 8, 5
Brums [2.3K]4 years ago
4 0
The electron configuration for the following elements and ions:
Cr 2-8-13-1
Cu 2-8-18-1
Cr+2 2-8-12
Cu+2 2-8-17
Mn+2 2-8-13

a positive sign next to an atom indicates that it lost electrons.
a negative sign indicates that it gained electrons
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Five peaks  

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GaAs would show two peaks:

Ga-69 + As-75 = 144

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Their intensities are in the ratio 60 : 40 = 100:67.

Ga₂S₂ would show three peaks:

Ga-69 + Ga-69 + 2As-75 = (Ga-69)₂(As-75)₂ = 288

Ga-69 + Ga-71 + 2As-75 = (Ga-69)(Ga-71(As-75)₂ = 290

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Their relative intensities are in the ratio

(60 + 40)² = 60² : 2×60×40 : 40² = 3600 : 4800 : 1600 = 75 : 100 : 33

A spectrum of a mixture of GaAs and Ga₂As₂ would show five peaks:

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We cannot predict the absolute sizes of the peaks because we do not know the relative amounts of GaAs and GaAs₂.

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