What family is hydrogen in? explain

This chart represents the melting point of several substance. what besy explains the high melting point of the salt?

Which statement describes both homogeneous mixtures and heterogeneous mixtures?

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.