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The noble gases have weak interatomic force, and consequently have very low melting and boiling points. They are all monatomic gases under standard conditions, including the elements with larger atomic masses than many normally solid elements.
Chapter 11 âfocus points: Intermolecular forces and their effect on properties of liquids Intermolecular (or interparticle) forces are weak interactions between particles. They decrease as you go from solid AE Ã¦ LIQUID ae. Ã¦ gas