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Guilherme Mazui

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What is the Difference Between Bromine and Iodine?

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Bromine and iodine are both halogens found in group 17 of the periodic table of elements. They share some similarities, but there are key differences between them:

  • Physical State: Bromine is a liquid at room temperature, while iodine is a solid at room temperature.
  • Atomic Number: Bromine has an atomic number of 35, while iodine has an atomic number of 53.
  • Melting Point: Bromine has a melting point of -7.2°C, while iodine has a melting point of 113.7°C.
  • Boiling Point: Bromine has a boiling point of 58.8°C, while iodine has a boiling point of 184.4°C.
  • Reactivity: Bromine is more reactive than iodine but less reactive than chlorine.
  • Oxidizing Agent: Bromine can remove electrons from iodide ions, producing iodine, while iodine cannot.

Both elements have 7 valence electrons and are composed of nonmetals. They share a -1 oxidation state, are less reactive than fluorine and chlorine, and have a similar electronic configuration.

On this page
  • What is the Difference Between Bromine and Iodine?
  • Comparative Table: Bromine vs Iodine

    • Comparative Table: Bromine vs Iodine

    Here is a table comparing the differences between bromine and iodine:

    Property Bromine Iodine
    Electron Configuration [Ar] 3d^10 4s^2 4p^5 [Kr] 4d^10 5s^2 5p^5
    Position in Periodic Table Group 17 and period 4 Group 17 and period 5
    Melting Point -7.2°C 113.7°C
    Boiling Point 58.8°C 184.4°C
    Physical State Liquid at room temperature Solid at room temperature
    Appearance Dark brownish-red liquid Black-shiny crystalline solid
    Vapor Forms brown-colored vapor when boiled Forms violet-colored vapor when boiled

    Bromine and iodine are both halogens, meaning they are located in Group 17 of the periodic table. They both have 7 electrons in their outermost shell, but iodine is a larger atom. Bromine is a liquid at room temperature, while iodine is a solid.

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    Guilherme Mazui

    Guilherme Mazui is graduated in journalism from the Federal University of Minas Gerais (UFMG) and a master's degree in Communication from the University of São Paulo (USP). In addition, he has experience in advertising writing and has worked as a content editor in several companies.