12. What is thought to cause the dispersion forces?
O sharing of electron pairs
O differences in electronegativity
O motion of electrons
attraction between ions

Which type of fossil does this image depict?

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.

Which of these features are formed when hot groundwater is forced out through cracks in the earth's surface?