Answer:
They neutralize each other
Organic elements, depends on the context of the question but I suspect that is the answer. The organic elements are H,O,C,N,P,S
It's known as the greenhouse effect.
Answer:
Metallic structure
Explanation:
They have a high melting point due to the strong forces of attraction between the positive ions (cations) and the delocalised electrons. Moreover, they conduct electricity due to the sea of delocalised electrons.
<em>[Extra: It could be an ionic compound since they also have a high melting point, however they only conduct electricity in liquid or aqeouus state.]</em>
