What is the formula for the compound formed by a magnesium cation (Mg2+) and a fluoride anion (F- )?

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 element has similar physical and chemical properties as boron.

Match each statement with the state of matter it describes