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Which of the following is true about the compound MgBr2?



Question 2 options:



A magnesium atom gained 2 electrons, while two bromine atoms each lost 1 electron.



A magnesium atom lost 2 electrons, while a bromine atom gained 2 electrons.



A bromine atom lost 2 electrons, while a magnesium atom gained 2 electrons.



A magnesium atom lost 2 electrons, while two bromine atoms each gained 1 electron.

Respuesta :

Answer: A magnesium atom lost 2 electrons, while two bromine atoms each gained 1 electron.
Magnesium is a metal that located in the second group of the periodic table. The element should be Mg2+ since it has 2 valence electron. That means, the magnesium tends to lose 2 electrons. Those 2 electrons would be divided equally between 2 bromine, so 1 electron for each bromine.
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Answer:

A magnesium atom lost 2 electrons, while two bromine atoms each gained 1 electron.

Explanation:

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