What compounds and elements burn the color green

The green flame can be produced by several compounds and elements, primarily due to the presence of certain metal ions. Here are some common sources: 1. **Copper Compounds**: - **Copper(II) sulfate (CuSO₄)**: When burned, it produces a green flame. - **Copper(II) chloride (CuCl₂)**: Also produces a green color. 2. **Boron Compounds**: - **Boron (B)**: When burned or vaporized, boron can produce a green flame. 3. **Lithium Compounds**: - **Lithium salts (like lithium carbonate)**: These can give a pale green flame, though lithium is more known for producing red flames. 4. **Certain Other Metal Salts**: - Some mixtures, particularly in pyrotechnics, can create green flames through the incorporation of multiple elements and their interactions. The specific shade of green can vary depending on the concentration of the compounds and other conditions of the combustion process.