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elena-s [515]
3 years ago
7

Which of the following ions came from an atom that gained 2 electrons?

Chemistry
1 answer:
GarryVolchara [31]3 years ago
4 0

Group 6 elements like Oxygen like to take on the extra two electrons to become a 2- anion and take on the noble gas configuration. so the O^2-, which looks like O=O, will have two oxygens sharing two electrons.... answer is O^2-

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Explanation:

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Answer : The de Broglie wavelength will be 3.68\times 10^{-33}m

Solution :

The formula used for de Broglie wavelength is:

\lambda=\frac{h}{mv} ..........(1)

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Now put all the given values in equation 1, we get:

\lambda=\frac{6.626\times 10^{-34}Js}{(0.0012kg)\times (150m/s)}

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