what are some characteristics of the oxygen family?
['Oxygen: colorless, tasteless, odorless, gas, melting point= 54.8 k, boiling point= 90.19 k.', 'Sulfur: pale yellow, brittle, tasteless, odorless, solid, melting point= 386 k, boiling point= 717.824 k.', 'Selenium: red, black, or metallic gray, solid (mostly), melting point= 490 k, boiling point= 958.1 k.']