Flame Colours and Fireworks

The video explores the phenomenon of flame colors, discovered by Robert Bunsen in the 19th century. Different elements produce unique flame colors due to their atomic structure and electron arrangements. This knowledge is applied in creating colorful fireworks, with specific elements like copper chloride and sodium salts used for distinct colors.

Who discovered the phenomenon of flame colours in the mid-19th century?

• Albert Einstein

• Robert Bunsen

• Isaac Newton

• Marie Curie

What colour does sodium produce when burned in a flame?

• Orangey Red

• Lilac

• Green

• Bright Yellow

What happens to electrons when heat energy is supplied to an element?

• They stop moving

• They become excited and jump to a higher energy level

• They disappear

• They change into protons

Why do different elements emit unique colours?

• Because of their atomic weight

• Due to the arrangement of electrons and energy level gaps

• Because of their size

• Due to their temperature

Which element is used to produce a blue display in fireworks?

• Sodium

• Strontium

• Lithium

• Copper Chloride