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Choose the one statement that is true of the noble gases.A.They are very reactive.B.Their valence shells are full of electrons.C.They are unstable.D.They are liquids at room temperature.

User Maarten Wolzak
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B. Their valence shell are full of electrons

That is the main characteristic of noble gases, and it is because of this that they are very stable, very unreactive and they have very low condensation temperature.

User Oberon
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