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Margarita [4]
3 years ago
6

How many electrons would make the d shell complete?

Chemistry
1 answer:
Mila [183]3 years ago
3 0

Answer:

D

Explanation:

The answer for the first question is definitely D. 10, as it is a neutral atom, therefore numbers of p+ and e- are the same.

Hope it helps you

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A sample originally contained 1.28 g of a radioisotope. It now contains 1.12 g of its daughter isotope.
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The answer is 3.

<span>The relation between number of half-lives (n) and decimal amount remaining (x) can be expressed as:

</span>(1/2) ^{n} =x

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Now, let's implement this in the equation: 

<span>(1/2) ^{n} =0.125
</span>
Because of the exponent, we will log both sides of the equation:
n * log(1/2) = log(0.125)
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<span>n = \frac{log(0.125)}{log(0.5)}
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