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  • Ions of an element of group 1 participate in the transmission of nerve signals and transport of sugars and aminoacids into cells.

Ions of an element of group 1 participate in the transmission of nerve signals and transport of sugars and aminoacids into cells. This element imparts yellow colour to the flame in flame test and forms an oxide and a peroxide with oxygen. Identify the element and write chemical reaction to show the formation of its peroxide. Why does the element impart colour to the flame?

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Sodium ions impart a yellow colour to the flame in a flame test and form an oxide and a peroxide with oxygen. The element imparts colour to the flame as the electrons in it change energy levels when heated.

4Na+O_{2}\rightarrow 2Na_{2}O

  2Na+O_{2}\rightarrow Na_{2}O_{2}

2Na_{2}O+O_{2}\rightarrow 2Na_{2}O_{2}

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