Element Z reacts with calcium to form the ionic compound Caz,? To which group does Z belong? (1) Group 2 (2) Group 13 (3) Group 17 (4) Group 18

The chemical bond connecting one nucleotide with the next one along the nucleic acid chain is called a

Explain what happens at the saturation point when adding salt to water at room temperature.

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.