2A1+ 3Br2 --> 2A1Br3 The reaction shown above is performed in a lab. When 10.7 g of Br2 is reacted with excess
aluminum, 11.3 g of AlBrz is actually produced in the lab. What is the percent yield of this lab
reaction? (Hint: you will need to find the theoretical yield before you calculate the percent yield.

The reaction will shift to the right

Answeropposite;

The fraction of an original sample of tritium that remains unchanged after 24.62 years is 1/4. if you need the percentage it is 25%

So the main goal for the elements is stability which is a complete/full valence shell and typically the magic number for a stable element is 8 valence electron but not always. so elements to the left of the periodic table tend to be way less stable then those on the right, so the elements on the left are much more reactive.