Chemistry
Grade-9
Easy

Question

Which family contains the least reactive elements?

  1. Halogens
  2. Alkali gases
  3. Transition gases
  4. Noble gases

hintHint:

Noble gases outermost shell is fulfilled.

The correct answer is: Noble gases


    • Halogens are the most reactive group of elements.
    • Alkali gases react with water.
    • Transition gases are intermediate reactive.
    • Noble gases are least reactive as they have fulfilled valence shell.

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