halogens

• Which elements are classified as halogens?


  The halogens include Fluorine (F), Chlorine (Cl), Bromine (Br), Iodine (I), Astatine (At), and Tennessine (Ts).
• Where are halogens located in the periodic table?

  Halogens are located on the right side of the periodic table, just to the left of the noble gases.
• What are the physical states of halogens at room temperature?

  • Fluorine: gas
  • Chlorine: gas
  • Bromine: liquid
  • Iodine: solid
  • Astatine: solid
• What color is Fluorine?

  Fluorine is pale yellow.
• What color is Chlorine?

  Chlorine is yellowish-green.
• What color is Bromine?

  Bromine is reddish-brown.
• What color is Iodine?

  Iodine is violet.
• How do the melting and boiling points of halogens change as you move down the group?

  The melting and boiling points increase as you move down the group.
• How does density change among halogens as you move down the group?

  The density of halogens increases as you move down the group.
• What is the solubility trend of halogens in water?

  All halogens are slightly soluble in water, with solubility increasing down the group.
• What is the electron configuration of halogens?

  All halogens have 7 outer electrons, needing one more to achieve a stable electron shell.
• Why are halogens highly reactive?

  Halogens are highly reactive due to their tendency to gain one electron to achieve a stable electron shell.
• What form do halogens exist in their elemental state?

  Halogens exist as diatomic molecules (e.g., F₂, Cl₂, Br₂, I₂).
• What is the order of reactivity among halogens?

  The order of reactivity is Fluorine > Chlorine > Bromine > Iodine > Astatine.
• What is an example of a displacement reaction involving halogens?

  Chlorine can displace iodine from potassium iodide: Cl₂ + 2KI → 2KCl + I₂.