OPTIONS: a)Ne. The melting and boiling points of noble gases are very low in comparison to those of other substances of comparable atomic and molecular masses. Similarly, because of increased dispersion forces, the boiling and melting points of monoatomic noble gases increase from helium to radon. Answer Save. Chlorine is greenish-yellow gas. thnx. d. Ar a. Xe b. So among the given noble gases Xe is having maximum boiling point Hence option A is correct. Bromine is reddish-brown or Orange-red liquid and Iodine is violet or Shining black solid. resulting in greater interaction between argon atoms. Hence Xe has highest boiling point. Favorite Answer. The noble gases all have low boiling points: helium, at the top of group 0, has the lowest boiling point of any element boiling point increases going down the group d)Kr. which noble gas has the highest boiling point? The melting and boiling points (physical properties) of a noble gas are close together, differing by less than 10 °C (18 °F) – that is to say, they are liquids over only a small temperature range. The melting and boiling point of all the noble gases is very low due to the following reasons: All consist of monatomic molecules that are held together by weak van der Waal forces of attraction. 1 decade ago. b)He. the noble gases, has the strongest intermolecular force and hence the highest boiling 21. The boiling point of noble gases is too low because of the very weak forces between them, called van der walls. Expert Answer 100% (6 ratings) Boiling and melting points of mono atomic noble gases increases down the group (Helium to Radon). Because of this, they considered non-reactive. Melting and Boiling Points: The elements have low boiling and melting points as their molecules are held together by Weak Vander Wall’s forces. The nobel gases have high ionization energy and very low electron affinity. See the answer. This problem has been solved! The ease of liquefaction of noble gases increases in the order (a) He < Ne < Ar < Kr < Xe asked Apr 10, 2018 in Chemistry by Golu ( 106k points) p - block element Of all point. Anonymous. Physical properties of the noble gases. c)Xe. Fluorine is light yellow/Pale yellow gas. Show transcribed image text. Therefore, its boiling point (1860 C) is more than that of He. -a,b,c,d or e? Relevance. During melting and boiling of overall noble gases, and only a slight amount … He c. Ne As atomic mass of the element increases, the vanderwaals forces of attration between atoms increases and boiling point increases. Ne Xe He Ar Kr. Noble gases have very low boiling and melting points, which makes them useful as cryogenic refrigerants. Question: Which Noble Gas Has The Highest Boiling Point? 7 Answers. e)Ar. 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