MCQ Detailed View

Fireworks produce colorful flames because of different chemical elements that emit characteristic colors when heated. The green flame seen in many fireworks is produced by the element barium.

When barium compounds are heated in the flame of a firework, their electrons become excited and then release energy in the form of light. The specific wavelengths of this light correspond to the green color. This is why barium salts, such as barium nitrate or barium chloride, are commonly used to create green flames in fireworks.

Other elements produce different flame colors. For example, sodium produces a bright yellow flame, potassium gives a lilac or light purple flame, and mercury compounds can produce blue or blue-green colors.

The science behind flame colors is based on the concept of atomic emission spectra. Each element has a unique set of energy levels. When electrons in an atom jump from a higher energy state to a lower one, they emit light of specific colors. This principle helps chemists identify elements in samples and also creates the beautiful colors in fireworks displays.

Understanding which elements produce which flame colors is an important part of chemistry. It connects the study of atomic structure to practical applications like fireworks and pyrotechnics.