Helium and Neon are __________ gases in which atoms are arranged in__________. They are _________ conductors of electricity. (Source: _________) Oxygen and Hydrogen are _________ gases in which atoms are arranged in _________. They are _________ conductors of electricity. (Source:_________) Sulfur and Carbon are _________ solids in which atoms are arranged in___________. Their properties include being _______ and ______. They are also ______conductors of electricity. (Source: _________) Copper and Gold are _________ solids in which atoms are arranged in ______________. Their properties include being ______ and ________. They are also ______conductors of electricity. (Source: _________)