Question

Question #44c0d

Answer 1

There is no isoelectronic elements. However, there is isoelectronic ions.

Explanation:

Isoelectronic means: "Same number of electrons". Therefore, same number of protons, therefore, same atomic number, thus, there is no isoelectronic elements.

However, there is isoelectronic ions, such as: `Na^+, Mg^(2+), F^(-), O^(2-) and N^(3-)`. All these ions have `10" electrons"`, therefore, they are called isoelectronic ions .