Answer:
O Bromine
Step-by-step explanation:
The element that will attract electrons in a chemical bond is Bromine. 
An element that attracts electrons in chemical bonds is said to be an electronegative element.
Such an element have a relative tendency to attract valence electrons in a chemical bond. 
- The most electronegative group on the periodic table is that of the halogens. 
- Halogens are a special class of electronegative elements. 
- They need just one electron to complete their octet, hence the reason for their electronegativity. 
- Metals are electropositive and are not ready to attract electrons. They prefer reactions where they can lose electrons.