If I am correct the answer would be iron and nickel.
Answer: secondary structure
Explanation:
It does<span>, however, change the </span>mass<span> of the nucleus. </span>Adding<span> or removing </span>neutrons<span>from the nucleus are how isotopes are created. Protons carry a positive electrical charge and they alone determine the charge of the nucleus.</span>
A Lithium atom that has lost ONE Electron, is called a Lithium Ion (Li+).
