Im the only noble gas with 2 electrons

What’s the percent by mass of carbon in c10h14n2

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.

Why is the bottom layer of a trophic pyrimid the