Question

Draw the Lewis structure, predict the charge, and name the ion for Br:

Answer 1

The Lewis structure of a bromine atom (Br) gaining one electron to become a bromide ion (Br-) shows eight dots representing electrons around Br, enclosed in brackets with a -1 superscript to indicate the charge. The name of the ion is bromide.

Step-by-step explanation:

The question is asking to draw the Lewis structure, predict the charge, and name the ion for a bromine atom (Br). Since bromine is in group 17 of the periodic table, it has seven valence electrons. To achieve a full octet, it will typically gain an extra electron, resulting in the formation of the bromide ion (Br-).

Here's how you can draw the Lewis structure for Br and predict its charge:

1. Count the valence electrons available for bromine, which is 7.
2. Since bromine gains one electron, we now have 8 electrons around Br, which are arranged as four pairs to complete the octet.
3. The Lewis structure for Br- is a symbol of Br with eight dots around it, representing its valence electrons.
4. Place the Br atom in brackets and write the charge (-1) as a superscript outside the brackets: [Br]-.
5. The formal charge on the Br ion is -1, as it has gained one electron.
6. The name of this ion is bromide.