Question

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.

Answer 1

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

Step-by-step explanation:

Took the test :))

Answer 2

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.