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Lemur [1.5K]
3 years ago
7

Which elements have electron configurations that end in ns 2 np 5 ? halogens noble gases inner transition metals transition meta

ls?

Chemistry
1 answer:
4vir4ik [10]3 years ago
7 0
HALOGENS have 7 electrons in their final shell regardless if the total number of atoms.  These 7 electrons would be shared between the 's' and 'p' orbital in the form ns² np⁵ (the same as the question).  Attached is a table that highlights the fact that halogens have the same form in terms of the valence electrons. 

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Study the figures below which illustrate the steps in the following chemical reaction:
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An analysis of an ionic compound is found to contain 92 grams of sodium (Na) and 32 grams of oxygen (O). Determine the empirical
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In an organic structure, you can classify each of the carbons as follows: Primary carbon (1o) = carbon bonded to just 1 other ca
Alla [95]

The question is incomplete, complete question is :

In an organic structure, you can classify each of the carbons as follows: Primary carbon (1°) = carbon bonded to just 1 other carbon group Secondary carbon (2°) = carbon bonded to 2 other carbon groups Tertiary carbon (3°) = carbon bonded to 3 other carbon groups Quaternary carbon (4°) = carbon bonded to 4 other carbon groups How many carbons of each classification are in the structure below? How many total carbons are in the structure? How many primary carbons are in the structure? How many secondary carbons are in the structure? How many tertiary carbons are in the structure? How many quaternary carbons are in the structure?

Structure is given in an image?

Answer:

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Explanation:

Total numbers of carbon = 10

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Number of tertiary carbons that is carbon joined to three carbon atoms = 2

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So, there are 10 carbon atoms in the given structures out of which 6 are 1° , 1 is 2° , 2 are 3° and 1 is 4°.

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ΔS (total) = ΔS (system) + ΔS (surroundings)

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When the reaction is non-spontaneous ΔS (total) < 0 , that means negative value.

As we are given that:

ΔS (system) = -100 J/K       (for spontaneous reaction)

Thus, the ΔS (surroundings) must be greater than ΔS (system) that means positive value.

So, ΔS (surroundings) = 100 J/K

Hence, the correct option is, (C) ΔS (surroundings) = 100 J/K

3 0
2 years ago
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