Which element in group 18 has the smallest radius?

What nation is 43 north latitude 13 east longitude? 1.78 grams per cubic centimeters is equal to? Does a eddo plant store food in the stem? What number of moles of o2(g) is required to react with 3.6 mole so2(g) in 2so2(g) o2(g) - 2so3(g)? What failure does ares point out in Percy telling him he doesnt have what it takes? Does all isotopic solids expand on melting? What is the main advantage of using a warm solution over a cold solution in a chemical reaction? What is the syrup from raw sugar called? Are porpoise omnivore? How much km is one altitude from Earth? How do you say meadow in Latin? What is it called when hot smoke gases up and go to the chimmeny? What substances is NOT stimulant? What was the Climate of kilwa? What is the purpose of The Francophonie? Is it possible for atoms of the same element to have different chemical properties? Which agency disseminates warnings for inland tropical storm or hurricane force winds? What causes hot materials to rise in the asthenosphere? What were the five periods in the development in chemistry? What is a noble cause?