Idon't know witch part is the front and which part is the back

What will most likely happen when two bromine atoms bond together?

The chart shows the bid provided by four contractors to complete a job. which contractor is the most cost-effective?

Click the button that shows the correct relationship of the electron affinities of the elements sodium and phosphorus. sodium’s electron affinity value is more negative than the electron affinity value of phosphorus. phosphorus’ electron affinity value is more negative than the electron affinity value of sodium. this information cannot be determined using the periodic table. answer is b on e2020.