What is the formula for bromine gas?

Answer 1

Electron affinity is that energy released when one electron is added to a gaseous atom of an element. For Mg

Mg(g) + e- -> Mg- (g) ; Energy = 0 kJ/mol

It is different from ionization potential which is the energy required to remove one electron

Mg(g)-> Mg+(g)+2e-

Answer 2

Ethane reacts with bromine to give bromoethane with the evolution of hydrogen gas.

2C2H6+Br2----> 2C2H5Br+H2

Bromine reacts with Ethane giving ethyl bromide and hydrogen bromide

CH3-CH3 + Br2 ---> CH3-CH2BR + HBr

Answer 3

According to my textbook (Brown, Lemay, Bursten & Murphy, 2006), the electron affinity of Bromine is -325 kJ/mol. Hope this helps.

Answer 4

It is Br2 . Since it is in gaseous state it can also be written as Br2(g)
Br2

Answer 5

Bromine forms the bromide ion Br- because it gains one electron, being a group 7 element, with 7 electrons in its outer shell.

Answer 6

Bromine can be transformed into several different ions. It can oxidize in to either bromite, bromate or perbromate ion in certain reactions. Bromine can reduce to bromide ion as well.

Answer 7

Br + e- -----> Br- + energy