) The only noble gas without eight valence electrons is . A) Ar B) Ne C) Kr D) He E) All noble gases have eight valence electrons. 6) Which of the following would have to lose three electrons in order to achieve a noble gas electron configuration

Alidded glass container is filled with a colored gas. after a period of time, it is observed that the gas is uniformly spread throughout the box and that the movement has slowed considerably. next, a warm iron plate is carefully placed under the box. why is there resumed movement of the gas in the container?