Sodium ion and calcium ions produce nearly the same color in a flame test. describe a way to differentiate between the two using a solution of na2co3 and write a balanced equation

Use examples from the article to explain one positive and one negative effect that chemistry has had on society.

What is a possible quantum number set for an electron in the 3s orbital of a magnesium atom

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.