Question

how many compounds are there?

Explanation:

Step1: Identify compounds

We see two distinct compounds: one is \( \text{Li}_3\text{N} \) (the structure with Li and N) and the other is the single C atom? Wait, no, a single atom is an element, not a compound. Wait, the structure with Li and N is \( \text{Li}_3\text{N} \), and is there another compound? Wait, no, the C is an element (atom), and the \( \text{Li}_3\text{N} \) is a compound. Wait, maybe I misread. Wait, the diagram: one structure is \( \text{Li}_3\text{N} \) (three Li and one N), and the other is a single C? No, a compound is a substance with two or more different elements. So \( \text{Li}_3\text{N} \) is a compound (Li and N), and is there another? Wait, no, the C is an element (atom), not a compound. Wait, maybe the question is about the number of compounds shown. Wait, the \( \text{Li}_3\text{N} \) is one compound, and is there another? Wait, no, the C is an element. Wait, maybe I made a mistake. Wait, the diagram: the \( \text{Li}_3\text{N} \) is a compound, and is there another compound? Wait, no, the C is just an atom (element). Wait, maybe the question is considering the \( \text{Li}_3\text{N} \) and maybe the C is not a compound. Wait, no, a compound must have at least two different elements. So \( \text{Li}_3\text{N} \) has Li and N (two elements), so it's a compound. Is there another? Wait, the C is an element (only C), so not a compound. Wait, maybe the diagram has two compounds? No, wait, maybe I missee. Wait, the \( \text{Li}_3\text{N} \) is one, and is there another? Wait, no, the C is a single atom (element). Wait, maybe the question is wrong, or I misinterpret. Wait, maybe the C is part of a compound? No, the diagram shows a single C circle and the \( \text{Li}_3\text{N} \) structure. So the number of compounds is 1? Wait, no, maybe the C is a compound? No, a compound needs two or more elements. So \( \text{Li}_3\text{N} \) is one compound, and C is an element. So the answer is 1? Wait, no, maybe I made a mistake. Wait, let's re-express:

A compound is a substance formed from two or more elements chemically bonded. The \( \text{Li}_3\text{N} \) has Li (lithium) and N (nitrogen) bonded, so it's a compound. The C (carbon) is a single atom, so it's an element, not a compound. So how many compounds? Only \( \text{Li}_3\text{N} \), so 1? Wait, but maybe the C is a compound? No, because it's only carbon. So the number of compounds is 1.

Wait, maybe the diagram has two compounds? No, the \( \text{Li}_3\text{N} \) is one, and the C is an element. So the answer is 1.

Step2: Count the compounds

We have one compound: \( \text{Li}_3\text{N} \), and the C is an element (not a compound). So the number of compounds is 1.

Answer:

1