Respuesta :

quasarJose

Answer:

b. Neon

Explanation:

Problem;

         O²⁻ is isoelectronic with which noble gas;

   The ion of oxygen give is one that has gained two electrons.

 Atom of oxygen  = 2, 6

   gaining two electrons;

O²⁻  = 2, 8

Neon is also 2, 8

So O²⁻ is isoelectronic with neon