The electron configuration notation for the element with atomic number 11 is

If a polyatomic ionic compound has gained two hydrogen ions, then how does its name begin?

Click the button that shows the correct relationship of the electron affinities of the elements sodium and phosphorus. sodium’s electron affinity value is more negative than the electron affinity value of phosphorus. phosphorus’ electron affinity value is more negative than the electron affinity value of sodium. this information cannot be determined using the periodic table. answer is b on e2020.

What is the percentage of hydrogen in c2h4