Multiple Choice
Noble gases are unreactive because, except for helium, they have a stable arrangement of:
Which of the following is a metalloid that is also a chalcogen?
Which element has chemical properties that are most similar to the chemical properties of sulfur, S?
What property do all of the Group 18 elements have that makes them stand out from other elements?
This is a group of elements with few valence electrons that conducts heat and electricity.