3 years ago

I need help plssss asap

Chemistry

2 answers:

vovangra [49]3 years ago

7 0

It’s the 2nd one I think

lilavasa [31]3 years ago

5 0

It is the second one,identical

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Write electronic configuration of chlorine in its ionic state?

MrMuchimi

Answer:

1s2 2s2 2p6 3s2 3p6

Explanation:

Chlorine is a groups 17 element. The halogens for ions by accepting one electron to form univalent negative ions.

Since chlorine normally contains seventeen electrons, the chloride ion consists of eighteen electrons.

Hence the electronic configuration of chlorine ion is; 1s2 2s2 2p6 3s2 3p6.

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Determine the expected diffraction angle for the first-order diffraction from the (111) set of planes for FCC nickel (Ni) when m

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Answer:

56°

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First calculate $a:$

$a=2 R \sqrt{2}=2(0.1246) \sqrt{2}=0.352 \mathrm{nm}$

The interplanar spacing can be calculated from:

$d_{111}=\frac{a}{\sqrt{1^{2}+1^{2}+1^{2}}}=\frac{0.352}{\sqrt{3}}=0.203 \mathrm{nm}$

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Solve for $\theta$

$\theta=\sin ^{-1}(0.476)=28^{\circ}$

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