Why Does Group 7A Have A 1 Charge?
Why Does Group 7A Have A 1 Charge? The Group 7A elements have seven valence electrons in their highest-energy orbitals (ns2np5). This is one electron away from having a full octet of eight electrons, so these elements tend to form anions having -1 charges, known as halides: fluoride, F–; chloride, Cl–, bromide, Br–, and iodide,