Question

8 atom a has seven electrons in its outer shell. atom b has one electron in its outer shell. they react and bond. now, atom a has eight electrons in its outer shell. what kind of bond has formed? a covalent b ionic c metallic d electron

Explanation:

Atom A has 7 outer - shell electrons and gains 1 electron from Atom B to complete its octet. An ionic bond is formed when one atom donates electrons to another atom to achieve a stable electron configuration. Here, Atom B donates its outer - shell electron to Atom A. Covalent bonds involve sharing of electrons, metallic bonds are between metal atoms, and "Electron" is not a type of bond.

Answer:

B. Ionic