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Bumek [7]
3 years ago
5

The electron configuration of an element is 1s^2 2s^2 2p^6. Describe what most likely happens when an atom of this element comes

near an atom having seven valence electrons
Chemistry
1 answer:
damaskus [11]3 years ago
6 0

Answer & Explanation:

Using the numbers in the configuration 1s² 2s² 2p^6 3s^1, we can find out it has 11 electrons (by adding 2,2,6,1), meaning the element is sodium (Na). Sodium is in the outermost column of the periodic table, meaning it has one valence electron, making it highly reactive because it can very easily give one electron in a reaction. Atoms will prefer to have a full eight valence electrons, meaning an atom with seven valence electrons is also incredibly reactive since it only needs to gain one more in a reaction to gain eight. If sodium, an element with one valence electron, reacts with an element with seven (i.e chlorine), they both will be very quick to chemically bond to form a full valence shell. 

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It will be number 1.
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7 0
3 years ago
A solution was found to have a 15.6 % transmittance at 500 nm, its wavelength of maximum absorption, using a cell with a path le
Gnesinka [82]

For the absorbance of the solution in a 1.00 cm cell at 500 nm  is mathematically given as

A’ = 0.16138

<h3>What is the absorbance of the solution in a 1.00 cm cell at 500 nm?</h3>

Absorbance (A) 2 – log (%T) = 2 – log (15.6) = 0.8069

Generally, the equation for the Beer’s law is mathematically given as

A = ε*c*l

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then for when ε*c is constant

l’ = 1.00

A’ = (0.16138 cm-1)*(1.00 cm)

A’ = 0.16138

In conclusion, the absorbance of the solution in a 1.00 cm cell at 500 nm is

A’ = 0.16138

Read more about Wavelength

brainly.com/question/3004869

7 0
2 years ago
What is going to happen to a balloon filled with helium that is left in a car over night when the temperature drops approximatel
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Answer:

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Explanation:

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Answer:

y = 5cos(\frac{2\pi }{6} x)

Explanation:

You can put that equation into a program like desmos on your browser and take a screenshot or use windows snippet tool.

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or

y = Acos(\frac{2\pi }{B} x)

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