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Phantasy [73]
3 years ago
10

Which element has the following Electron configuration? *

Chemistry
1 answer:
GuDViN [60]3 years ago
3 0
Magnesium. You can count the electrons in each level and because the number of electrons is the same with protons you have the atomic number based of which you can get the element in the periodic table
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What is the volume of a weather balloon that has 39 grams of helium with a density 0.017 g/mL?
olchik [2.2K]

Answer:

<h3>The answer is 235.29 mL</h3>

Explanation:

The volume of a substance when given the density and mass can be found by using the formula

volume =  \frac{mass}{density}  \\

From the question.

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<h3>235.29 mL</h3>

Hope this helps you

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