Do the melting and boiling points of the halogens increase or decrease as you go down the group?
Question
Do the melting and boiling points of the halogens increase or decrease as you go down the group?
Solution
The melting and boiling points of the halogens increase as you go down the group. Here's why:
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Halogens are located in Group 7 of the Periodic Table. This group includes elements like Fluorine (F), Chlorine (Cl), Bromine (Br), Iodine (I), and Astatine (At).
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As you move down the group, the number of electron shells in each halogen increases. This means that the size of the atoms also increases.
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Larger atoms have more electrons. These additional electrons lead to stronger London dispersion forces (a type of van der Waals force) between the atoms.
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The stronger these intermolecular forces, the more energy is required to overcome them and change the state of the substance (from solid to liquid, or liquid to gas).
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Therefore, both the melting and boiling points increase as you go down the group of halogens.
Similar Questions
Which of the following is NOT a property of the halogens (group 7 elements)?Low densityLow melting pointConduct electricityReactivity decreases down the group
What experimental evidence supports the hypothesis that impurities lower the melting point while increasing the boiling point of a substance?
a) Arrange the isomeric dichlorobenzene in the increasing order of their boiling point and meltingpoints
Based on the reactivity of the halogens, which of these displacement reactions is possible?
The boiling points of Iodomethane, Dibromomethane, Bromomethane,Chloromethane follow the order
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